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B1 verb 13 min read

perfuser

Practice it Examples Notes & Tips perfuser in 30 Seconds

Explanation perfuser in your Level:

At the A1 level, the word 'perfuser' is quite advanced and technical. However, you might encounter it if you are learning French for travel or basic needs and find yourself in a medical situation. At this level, you should simply recognize that it relates to a doctor or nurse helping a patient in a hospital. You don't need to conjugate it perfectly yet, but knowing that 'le médecin' (the doctor) might 'perfuser' a patient is helpful. It's essentially the French way of saying 'to put someone on a drip.' Think of it as a 'hospital word.' You won't use it to talk about daily life like eating or shopping. If you are in a hospital and hear 'On va vous perfuser,' it means they are going to give you medicine or water through a small tube in your arm. It's a specific action. You can relate it to 'aider' (to help) or 'soigner' (to treat). Don't worry about the complex medical details; just remember: Hospital + Tube + Medicine = Perfuser.

At the A2 level, you can begin to understand 'perfuser' as a regular '-er' verb, similar to 'manger' or 'parler.' You can use it in simple sentences like 'L'infirmier perfuse le patient' (The nurse is putting the patient on a drip). You should be aware that it is a transitive verb, meaning it needs an object (someone or something being perfused). You might see it in simple health-related texts or news snippets. It's important to distinguish it from 'boire' (to drink); patients 'perfuser' don't drink the medicine, it goes directly into their blood. You might also see the past participle 'perfusé' used as an adjective, like 'un homme perfusé.' This level is about recognizing the word in context and understanding that it describes a medical procedure involving a continuous flow of liquid. You can practice by making simple sentences about a hospital visit or a scene from a TV show.

At the B1 level (your current level!), you should be able to use 'perfuser' with confidence in various tenses like the 'passé composé' or 'futur simple.' You understand that it means to supply an organ or tissue with fluid, typically through an IV. You can now use it in more complex sentences: 'Il a fallu perfuser la victime avant de la transporter' (It was necessary to put the victim on a drip before transporting them). You are also starting to see the metaphorical use in news reports about the economy, where a government 'perfuses' a bank with money. You should know the difference between 'perfuser' and 'injecter' (continuous vs. one-time). At this stage, you are expected to understand the word when listening to the news or watching a movie set in a professional environment. You can also use the noun form 'perfusion' in phrases like 'être sous perfusion.' This word adds a layer of professional precision to your French vocabulary.

At the B2 level, you should master the nuances of 'perfuser.' You can use it in professional or academic discussions about healthcare, biology, or economics. You understand the difference between 'perfuser' (artificial/medical) and 'irriguer' (natural/biological). You can handle passive constructions easily: 'Les tissus ont été perfusés avec succès' (The tissues were successfully perfused). You are comfortable with the metaphorical use, understanding that it implies a sense of artificial life support for a system, company, or economy. You might use it in an argumentative essay: 'L'État ne peut pas se contenter de perfuser des secteurs en déclin; il faut innover.' You also recognize the technical terminology related to it, such as 'perfusionniste' or 'débit de perfusion.' Your usage should be precise, avoiding confusion with 'infuser' or 'diffuser.' You can discuss medical ethics or economic policy using this word as a tool for sophisticated imagery.

At the C1 level, 'perfuser' becomes part of your specialized vocabulary. You can use it in highly technical contexts, such as describing surgical procedures or complex physiological mechanisms. You understand the Latin roots (perfundere) and how they influence the word's meaning of 'pouring through.' You can use it to describe lab experiments: 'On a perfusé le foie isolé pour mesurer son métabolisme.' In literature or high-level journalism, you can appreciate the stylistic choice of using 'perfuser' to create a clinical, detached, or desperate tone. You can use it fluently in metaphors that describe the flow of information, power, or capital within a complex network. Your understanding is deep enough to explain the word to others, including its history and its specific placement within the medical and economic lexicons. You are aware of its rare reflexive uses and can identify subtle errors in how others might use it.

At the C2 level, your mastery of 'perfuser' is near-native. You can use the word with total precision in any context, from a medical dissertation to a political speech or a piece of creative writing. You understand the most subtle connotations: how 'perfuser' implies a lack of autonomy in the object (the patient or the company), as they are dependent on the external flow. You can use it to critique systemic dependencies in society or biology. You are familiar with all derived forms and technical collocations ('pression de perfusion cérébrale', 'liquide de perfusion'). You can play with the word in puns or advanced rhetorical devices. Whether you are reading a 19th-century medical text or a modern economic analysis, you grasp every layer of meaning. You can also switch between the literal medical sense and the abstract metaphorical sense with ease, choosing the word specifically for its imagery of 'life support' and 'channeled flow.' At this level, the word is not just a vocabulary item, but a precise instrument for thought.

Practice it Examples Notes & Tips

perfuser in 30 Seconds

Perfuser is a first-group French verb meaning to supply an organ or patient with fluid, typically via an IV drip in medical settings.
It is primarily used in hospitals but has a strong metaphorical presence in French economic and political news to describe financial bailouts.
Grammatically, it is a transitive verb following regular '-er' patterns, often used with the preposition 'avec' to specify the fluid being administered.
Learners should distinguish it from 'injecter' (one-time) and 'irriguer' (natural or agricultural) to ensure precise communication in professional contexts.

The French verb perfuser is a specialized term primarily rooted in the medical domain, though it has found its way into metaphorical contexts in finance and administration. At its core, to perfuse means to cause a liquid—most commonly blood, a saline solution, or a medicinal fluid—to flow through a body part, an organ, or the circulatory system of a patient. When you encounter this word in a French hospital or a medical drama, it almost always refers to the act of putting someone on a drip or administering intravenous therapy. It is a transitive verb, meaning it takes a direct object: you perfuse a patient (le patient) or an organ (un organe). Unlike the more general 'injecter' (to inject), which implies a one-time delivery of a substance, perfuser suggests a continuous, controlled flow over a period of time. This distinction is crucial for learners to grasp because it changes the temporal nature of the action described.

Clinical Context: In a hospital setting, a nurse might say, 'Il faut perfuser la patiente avant l'intervention,' meaning the patient needs to be put on an IV drip before the procedure. This ensures hydration or the delivery of anesthesia.
Metaphorical Context: In economic discussions, you might hear about 'perfuser l'économie' with state subsidies. This implies a continuous injection of funds to keep a struggling system alive, much like a patient on life support.

L'infirmier a dû perfuser le blessé dès son arrivée aux urgences pour stabiliser sa tension.

Historically, the term derives from the Latin perfundere, meaning 'to pour over' or 'to drench.' In modern French, the technical precision of the word has narrowed its focus to internal flows. You won't use 'perfuser' to talk about pouring water over a plant; that would be 'arroser.' Instead, perfuser implies a biological or systematic interiority. It is a B1 level word because while it is technical, it is ubiquitous in daily news and healthcare conversations. Understanding this word allows you to navigate French healthcare environments and comprehend sophisticated economic metaphors often found in publications like Le Monde or Le Figaro. The verb follows the regular '-er' conjugation pattern, making it grammatically straightforward for learners who are already familiar with verbs like 'aimer' or 'chanter.'

Les chirurgiens doivent perfuser le greffon pour s'assurer de sa viabilité pendant le transport.

Biological Nuance: Perfusion refers to the microscopic delivery of blood to a capillary bed in biological tissue. Therefore, to 'perfuse' is to facilitate this vital exchange of gases and nutrients.

L'État a décidé de perfuser le secteur aéronautique avec des aides massives pour éviter la faillite.

Peut-on perfuser un patient avec une solution saline si le sang n'est pas disponible immédiatement ?

Grammar Note: As a transitive verb, it requires an object. You cannot just 'perfuser'; you must perfuse *something* or *someone*. Example: 'Le médecin perfuse le bras.'

Il est nécessaire de bien perfuser les reins durant l'opération pour éviter toute nécrose.

Using perfuser correctly involves understanding its role as a first-group verb and its specific objects. In a literal sense, the subject is typically a medical professional (un infirmier, un médecin) or a machine, and the object is a patient or a body part. However, in passive constructions, you will often see the patient as the subject: 'Le patient est perfusé.' This is very common in medical reports. When constructing sentences, pay attention to the preposition 'avec' (with) to indicate the fluid being used. For instance, 'perfuser avec du glucose' (to perfuse with glucose). The verb is also used in the infinitive form frequently after modal verbs like 'devoir' (must) or 'falloir' (to be necessary).

Voulez-vous que je commence à perfuser le patient dans la chambre 4 ?

In a metaphorical sense, the 'fluid' becomes something abstract like money, resources, or even ideas. If a government is 'perfusing' a company, it is keeping it alive artificially. This usage is slightly more advanced (B2/C1) but very useful for business French. Another grammatical nuance is the use of the past participle 'perfusé' as an adjective. A 'patient perfusé' is a patient who is currently on a drip. This is a shorthand way to describe a patient's status in a clinical setting. Remember that the verb is active; if the fluid is moving naturally, we use 'circuler' or 'irriguer'. Perfuser implies an external intervention to force or manage that flow.

Active Voice: L'interne va perfuser le malade. (The intern is going to put the patient on a drip.)
Passive Voice: La victime a été perfusée sur les lieux de l'accident. (The victim was put on a drip at the scene of the accident.)

On ne peut pas se contenter de perfuser des fonds sans réformer le système en profondeur.

In scientific writing, 'perfuser' is used to describe laboratory procedures. For example, 'perfuser un cerveau de rat' (to perfuse a rat brain) for fixation or study. This highlights the technical versatility of the word. Learners should also be aware of the reflexive form 'se perfuser', though it is rare and usually implies a patient administering their own IV therapy, which is uncommon outside of specific chronic conditions. When practicing, try to build sentences that involve a clear subject, the verb 'perfuser', a direct object, and an optional prepositional phrase detailing the method or the substance used.

Il est difficile de perfuser ce patient car ses veines sont trop fines.

Common Objects: un patient, un blessé, un organe, un tissu, une économie, une entreprise.

L'équipe médicale a réussi à perfuser le cœur artificiel avec succès.

Pourquoi faut-il perfuser le patient avec une solution glucosée avant l'effort ?

The most likely place to hear perfuser is in a healthcare setting. France has a robust medical system, and terminology is standardized. If you are watching a French medical drama like Hippocrate or Nina, you will hear this word in almost every episode. Nurses and doctors use it as a standard operational verb. Beyond the hospital, the word is a favorite among political and economic commentators. In France, the concept of the 'État-providence' (Welfare State) often leads to debates about whether the government should continue to 'perfuser' certain industries—like the railway (SNCF) or the automotive sector—with public funds to prevent their collapse. This metaphorical usage is a hallmark of sophisticated French discourse.

À la radio, l'expert expliquait qu'on ne peut pas perfuser une banque éternellement sans exiger de garanties.

You might also encounter the word in scientific documentaries or educational programs on channels like Arte or France 5. When explaining how the human body works, especially the cardiovascular system, 'perfuser' is the technically correct term for how blood reaches our extremities. In literature, while less common than in technical prose, it can be used to create a clinical or cold atmosphere. For instance, a modern thriller might describe a character in a coma being 'perfusé' by machines, emphasizing their vulnerability and the artificiality of their survival. It's a word that carries a weight of dependency—the object being perfused depends on the source for its continued function.

News Media: Frequent in headlines about 'le plan de relance' (recovery plan) where money is 'perfusé' into the economy.
Daily Life: Rare in casual conversation unless discussing a relative's hospital stay: 'Maman est à l'hôpital, ils vont la perfuser pour la réhydrater.'

Dans cette série, on voit l'infirmière perfuser le héros après son accident de voiture.

In a laboratory or research environment, the word is used in the context of 'perfusion ex vivo' (perfusion outside the body), often discussed in the context of organ transplants. France is a leader in medical research, so many technical papers and press releases from institutions like INSERM (Institut national de la santé et de la recherche médicale) will use this verb. For a learner, hearing this word should immediately trigger a 'medical' or 'systemic support' mental frame. It is never used for drinking, pouring a glass of wine, or watering a garden; those are different domains entirely. The specificity of 'perfuser' makes it a high-value word for precise communication.

Le reportage montrait comment les scientifiques parviennent à perfuser des organes isolés pour les étudier.

Professional Jargon: Used by perfusionists (perfusionnistes), the specialists who operate heart-lung machines during surgery.

On a dû le perfuser pendant toute la durée de son vol de rapatriement sanitaire.

Il est essentiel de perfuser le patient avec précaution pour éviter les bulles d'air.

One of the most frequent errors English speakers make with perfuser is confusing it with 'infuser' (to infuse). While they sound similar and share a medical overlap, 'infuser' in French is most commonly used for making tea (infuser du thé) or for the passive process of a substance steeping in a liquid. In a medical context, an 'infusion' is the fluid itself, but the act of delivery is 'perfusion' and the verb is 'perfuser'. If you say you are going to 'infuser un patient', a French speaker might imagine you are dipping the patient in hot water like a tea bag! Always use 'perfuser' for the medical act of IV administration.

Ne dites pas : 'Je vais infuser le blessé.' Dites : 'Je vais perfuser le blessé.'

Another mistake is using 'perfuser' when 'injecter' is more appropriate. 'Injecter' is for a quick shot (like a vaccine), whereas 'perfuser' is for a slow, continuous drip. Using 'perfuser' for a flu shot would be incorrect and confusing. Additionally, some learners try to use 'perfuser' as an intransitive verb. You cannot say 'Le sang perfuse.' You must say 'Le sang irrigue les tissus' (Blood irrigates the tissues) or 'On perfuse les tissus avec du sang.' The verb requires an agent (even if implied) and a target. Confusion also arises with the word 'diffuser' (to broadcast/spread). While both involve movement, 'diffuser' is about spreading out in all directions (like light or news), while 'perfuser' is a directed, channeled flow into a specific biological or systematic target.

Confusion with 'Irriguer': 'Irriguer' is often natural (blood flow) or agricultural (water in fields). 'Perfuser' is almost always artificial/medical.
Preposition Errors: Learners sometimes use 'dans' instead of 'avec'. Correct: 'Perfuser avec du sérum' (Perfuse with serum). Incorrect: 'Perfuser dans du sérum'.

Attention à ne pas perfuser trop rapidement, cela peut être dangereux pour le cœur.

Finally, avoid overusing the metaphorical sense in casual settings. While it's great for an essay on the French economy, saying 'Je vais perfuser mon compte en banque' (I'm going to perfuse my bank account) sounds overly dramatic and strange to a native speaker. It's better to use 'renflouer' (to bail out/refill) or 'alimenter' (to feed/supply). The metaphorical 'perfuser' is usually reserved for large-scale systems or desperate situations where 'artificial life support' is the intended imagery. Stick to the medical context for 90% of your usage, and you will stay on safe ground.

Est-ce que l'infirmier a oublié de perfuser le patient avant son transfert ?

False Friend Warning: The English 'perfuse' is very rare outside of medicine. In French, 'perfuser' is the ONLY way to say 'to put on a drip'. Don't look for other words.

On ne peut pas perfuser n'importe quel liquide dans les veines d'un être humain.

Le médecin a ordonné de perfuser la jambe pour stimuler la circulation locale.

To truly master perfuser, you must know its neighbors. The most common alternative is irriguer. While 'perfuser' is almost always medical and artificial, 'irriguer' can be natural (the river irrigates the valley, or blood irrigates the brain) or agricultural. If you want to describe a natural biological process, 'irriguer' is better. For example, 'Le cerveau est bien irrigué.' If you want to describe a doctor's action, use 'perfuser'. Another close term is injecter. As mentioned, 'injecter' is a one-time act (a jab), whereas 'perfuser' is a continuous process. You inject a vaccine, but you perfuse a patient with saline over three hours.

Perfuser vs. Irriguer: Perfuser = Artificial, medical, active intervention. Irriguer = Natural flow, or agricultural watering.
Perfuser vs. Injecter: Perfuser = Continuous, slow, drip-based. Injecter = Instant, one-time, needle-based.

Plutôt que de perfuser le malade, on a choisi de lui injecter une dose unique d'antibiotiques.

In a metaphorical sense, alternatives include renflouer (to bail out financially), alimenter (to supply/feed), or soutenir (to support). If you are talking about giving money to a project, 'alimenter le projet en fonds' is very natural. 'Perfuser' is only used when the project is 'dying' and needs 'emergency life support'. There is also the verb transfuser, which is specifically for blood (une transfusion sanguine). You 'perfuse' a patient with various liquids, but you 'transfuse' blood specifically. Note that 'transfuser' is a subset of 'perfuser' in a way, but much more specific to the substance (blood).

L'agriculteur doit irriguer ses champs, mais l'infirmier doit perfuser son patient.

Finally, consider diffuser. While 'diffuser' means to spread out (like a scent or news), it is sometimes confused by learners. 'On diffuse une information' (We spread information), but 'On perfuse un médicament' (We administer a medicine via drip). The key is the delivery mechanism: 'perfuser' always involves a channeled, medical-style delivery. By comparing these words, you can see that 'perfuser' occupies a very specific niche of 'sustained, artificial, internal delivery.' Mastery of these distinctions is what separates a B1 learner from a B2/C1 speaker who can choose the exact right word for the context.

Le chirurgien a demandé de perfuser l'organe avec une solution de conservation.

Summary of Alternatives: 1. Irriguer (Natural/Agri) 2. Injecter (Quick shot) 3. Transfuser (Blood only) 4. Renflouer (Money/Bailout).

Il est inutile de perfuser cette entreprise si elle n'a pas de futur viable.

On va perfuser le patient avec des vitamines pour accélérer sa récupération.

How Formal Is It?

Fun Fact

Although it sounds very modern, the concept of 'pouring through' dates back to ancient medicine, though the IV drip was only perfected in the 20th century.

Pronunciation Guide

UK /pɛʁ.fy.ze/

US /pɛɹ.fju.zeɪ/

Final syllable (ze).

Rhymes With

amuser refuser diffuser user abuser accuser infuser ruser

Common Errors

Pronouncing 'u' like 'oo' (as in 'food').
Pronouncing the final 'r'.
Confusing it with 'profuser' (not a word).
Missing the guttural 'r'.
Stress on the first syllable.

Difficulty Rating

Reading 3/5

Common in news and medical texts.

Writing 4/5

Requires knowledge of transitive objects.

Speaking 4/5

The 'u' sound and 'r' can be tricky.

Listening 3/5

Clear pronunciation in professional settings.

What to Learn Next

Prerequisites

médecin hôpital sang donner aider

Learn Next

transfuser irriguer cathéter anesthésie réanimation

Advanced

perfusionniste extracorporel hémodynamique vasoconstriction

Grammar to Know

Regular -er verb conjugation in the present tense.

Je perfuse, tu perfuses, il perfuse...

Agreement of the past participle with 'être' in the passive voice.

Elle est perfusée (feminine agreement).

Use of the infinitive after prepositions like 'pour' or 'sans'.

Pour perfuser le patient.

The causative construction with 'faire'.

Le médecin fait perfuser le patient par l'infirmier.

Transitive verb structure (Subject + Verb + Direct Object).

Le docteur (S) perfuse (V) l'organe (DO).

Examples by Level

Le docteur va perfuser le patient.

The doctor is going to put the patient on a drip.

Simple subject-verb-object structure.

Il faut perfuser cet homme.

It is necessary to put this man on a drip.

Use of 'il faut' + infinitive.

L'infirmière peut perfuser le bras.

The nurse can put the drip in the arm.

Modal verb 'pouvoir' + infinitive.

Est-ce que vous allez perfuser ma mère ?

Are you going to put my mother on a drip?

Interrogative sentence.

On ne peut pas perfuser l'enfant ici.

We cannot put the child on a drip here.

Negative construction 'ne... pas'.

Je vois l'infirmier perfuser le blessé.

I see the nurse putting the injured person on a drip.

Verb of perception + infinitive.

Il est important de perfuser vite.

It is important to put the drip in quickly.

Adverb 'vite' modifying the infinitive.

Ils vont perfuser le patient avec de l'eau.

They are going to put the patient on a water drip (saline).

Preposition 'avec' for the substance.

L'infirmier a déjà perfusé le patient de la chambre 3.

The nurse has already put the patient in room 3 on a drip.

Passé composé with 'avoir'.

Si le patient a soif, on doit le perfuser.

If the patient is thirsty, we must put him on a drip.

Conditional 'si' clause.

Elle a peur quand on veut la perfuser.

She is afraid when they want to put her on a drip.

Subordinate clause with 'quand'.

Le médecin perfuse le bras gauche du blessé.

The doctor puts the drip in the injured person's left arm.

Specific direct object 'le bras gauche'.

Pourquoi l'infirmière ne veut-elle pas perfuser le malade ?

Why doesn't the nurse want to put the patient on a drip?

Inversion in a question.

Nous allons perfuser le patient avec un nouveau médicament.

We are going to put the patient on a drip with a new medicine.

Futur proche.

Il faut perfuser doucement pour ne pas faire mal.

You must put the drip in gently so as not to cause pain.

Adverb 'doucement'.

Le patient est perfusé depuis ce matin.

The patient has been on a drip since this morning.

Passive state with 'depuis'.

Avant l'opération, l'anesthésiste doit perfuser le patient.

Before the operation, the anesthesiologist must put the patient on a drip.

Temporal preposition 'avant'.

On a décidé de perfuser la zone pour éviter une infection.

We decided to perfuse the area to avoid an infection.

Infinitive of purpose with 'pour'.

L'État a dû perfuser l'entreprise pour éviter la faillite.

The State had to infuse the company with funds to avoid bankruptcy.

Metaphorical usage.

Pendant qu'il dormait, on a continué à le perfuser.

While he was sleeping, they continued to put him on a drip.

Imperfect + Passé composé.

Il est difficile de perfuser un patient déshydraté.

It is difficult to put a dehydrated patient on a drip.

Adjective 'déshydraté'.

Voulez-vous que je finisse de perfuser le blessé ?

Do you want me to finish putting the injured person on a drip?

Subjunctive mood after 'vouloir que'.

Si nous ne pouvons pas le perfuser, il va mourir.

If we cannot put him on a drip, he is going to die.

Conditional type 1.

L'infirmière vérifie si on peut encore perfuser cette veine.

The nurse checks if we can still use this vein for a drip.

Indirect question with 'si'.

Il est crucial de perfuser l'organe immédiatement après son prélèvement.

It is crucial to perfuse the organ immediately after its removal.

Infinitive after 'il est + adjective'.

La banque centrale a choisi de perfuser le marché avec des liquidités.

The central bank chose to infuse the market with liquidity.

Advanced metaphorical usage.

Bien que le patient soit stable, il faut continuer à le perfuser.

Although the patient is stable, we must continue to put him on a drip.

Subjunctive after 'bien que'.

Le protocole exige de perfuser le cerveau pendant la chirurgie cardiaque.

The protocol requires perfusing the brain during cardiac surgery.

Verbs of requirement + de + infinitive.

On ne peut pas perfuser indéfiniment un secteur qui n'est plus rentable.

We cannot indefinitely infuse a sector that is no longer profitable.

Adverb 'indéfiniment'.

Avez-vous réussi à perfuser le greffon sans l'endommager ?

Did you manage to perfuse the graft without damaging it?

Preposition 'sans' + infinitive.

Le débit auquel on doit perfuser le patient est très précis.

The rate at which we must perfuse the patient is very precise.

Relative pronoun 'auquel'.

Après avoir été perfusé, le patient a repris des couleurs.

After being put on a drip, the patient got some color back.

Past infinitive 'après avoir été'.

L'étude consiste à perfuser des cellules souches dans le tissu endommagé.

The study consists of perfusing stem cells into the damaged tissue.

Specialized scientific vocabulary.

On craint que perfuser trop de fonds ne crée une bulle spéculative.

It is feared that infusing too many funds might create a speculative bubble.

Subjunctive after 'craindre que' + ne explétif.

Le chirurgien a dû perfuser l'artère coronaire pour rétablir le flux.

The surgeon had to perfuse the coronary artery to restore flow.

Technical anatomical terms.

Il s'agit de perfuser le système de manière sélective.

It is a matter of perfusing the system selectively.

Expression 'il s'agit de'.

Le risque de perfuser un air embolique est minime avec ce matériel.

The risk of perfusing an air embolus is minimal with this equipment.

Medical noun phrase 'air embolique'.

La capacité à perfuser correctement les tissus détermine la survie du patient.

The ability to correctly perfuse tissues determines the patient's survival.

Noun 'capacité' + à + infinitive.

L'économie mondiale est perfusée par les dettes souveraines.

The global economy is infused by sovereign debts.

Passive voice with 'par'.

Il convient de perfuser la solution à température ambiante.

It is advisable to perfuse the solution at room temperature.

Formal 'il convient de'.

L'acharnement thérapeutique consistait à perfuser un corps déjà sans vie.

The therapeutic obsession consisted of perfusing a body already without life.

Ethical/Philosophical context.

La machine de circulation extracorporelle permet de perfuser l'organisme entier.

The heart-lung machine allows for the perfusion of the entire organism.

Highly technical noun phrases.

Vouloir perfuser de la morale dans la politique est un projet ambitieux.

Wanting to infuse morality into politics is an ambitious project.

Abstract philosophical metaphor.

Le débit de perfusion doit être corrélé à la pression artérielle moyenne.

The perfusion rate must be correlated to the mean arterial pressure.

Scientific correlation terminology.

On a tenté de perfuser le néoplasme avec des agents chimiothérapeutiques.

An attempt was made to perfuse the neoplasm with chemotherapeutic agents.

Oncology terminology.

La structure même de l'UE oblige à perfuser les régions les plus pauvres.

The very structure of the EU obliges the infusion of the poorest regions.

Geopolitical context.

Il est vain de perfuser une idéologie dans une population qui la rejette.

It is futile to infuse an ideology into a population that rejects it.

Sociological metaphor.

L'analyse post-mortem a révélé qu'on n'avait pas réussi à perfuser le lobe gauche.

The post-mortem analysis revealed that they had failed to perfuse the left lobe.

Pluperfect tense usage.

Common Collocations

perfuser un patient

perfuser un organe

perfuser l'économie

être perfusé avec du sérum

perfuser en urgence

pompe à perfuser

perfuser lentement

veine à perfuser

perfuser des capitaux

perfuser un greffon

Common Phrases

poser une perf

— Colloquial way to say 'to set up a drip'.

Je vais lui poser une perf.

être sous perfusion

— To be on a drip (literally or metaphorically).

L'entreprise est sous perfusion de l'État.

débit de perfusion

— The rate at which the fluid is delivered.

Réglez le débit de perfusion.

poche de perfusion

— The bag containing the fluid.

Changez la poche de perfusion.

kit de perfusion

— The equipment needed for the drip.

Apportez-moi un kit de perfusion.

perfusion intraveineuse

— Intravenous infusion (technical term).

Une perfusion intraveineuse est nécessaire.

perfusion continue

— A continuous flow of medication.

Il est en perfusion continue.

incident de perfusion

— A problem during the drip process.

Il y a eu un incident de perfusion.

surveiller la perfusion

— To monitor the drip.

Il faut surveiller la perfusion de près.

arrêter la perfusion

— To stop the drip.

On peut arrêter la perfusion demain.

Often Confused With

perfuser vs infuser

Infuser is for tea or steeping; perfuser is for IV medical delivery.

perfuser vs diffuser

Diffuser is to spread in all directions; perfuser is a channeled flow.

perfuser vs profuser

Not a word in French, though 'profusion' is a noun meaning 'plenty'.

Idioms & Expressions

"Vivre sous perfusion"

— To survive only thanks to external aid.

Cette ville vit sous perfusion des aides européennes.

metaphorical

"Perfuser de l'argent frais"

— To inject new money into a failing system.

Le ministre veut perfuser de l'argent frais dans l'éducation.

political

"Être à bout de perfusion"

— To be at the limit of what external aid can do.

Le système de santé est à bout de perfusion.

journalistic

"Maintenir sous perfusion"

— To keep something barely alive through artificial means.

Ils maintiennent ce projet sous perfusion depuis des années.

metaphorical

"Une économie perfusée"

— An economy dependent on subsidies.

C'est une économie perfusée par la dette.

economic

"Perfuser ses idées"

— To slowly introduce one's ideas into a group.

Il tente de perfuser ses idées dans le parti.

figurative

"Perfusion de confiance"

— A sudden boost of confidence given to someone.

Son discours a été une véritable perfusion de confiance.

figurative

"Sans perfusion, point de salut"

— Without external help, there is no hope.

Pour cette usine, sans perfusion, point de salut.

dramatic

"Perfuser le moral"

— To boost someone's spirits slowly.

Elle essaie de perfuser le moral de ses troupes.

figurative

"Débrancher la perfusion"

— To stop providing aid or support suddenly.

Le gouvernement a décidé de débrancher la perfusion.

metaphorical

Easily Confused

perfuser vs irriguer

Both involve liquid flow.

Irriguer is usually natural (blood flow) or agricultural. Perfuser is artificial/medical.

Le sang irrigue le cerveau, mais on perfuse un patient.

perfuser vs injecter

Both involve needles.

Injecter is a single shot. Perfuser is a continuous drip.

On injecte un vaccin, on perfuse une solution saline.

perfuser vs transfuser

Both are medical IV processes.

Transfuser is strictly for blood. Perfuser is for any liquid (saline, meds, blood).

On transfuse du sang, on perfuse du glucose.

perfuser vs arroser

Both mean 'to pour liquid'.

Arroser is for plants or surfaces. Perfuser is internal/medical.

Arroser les fleurs vs Perfuser un patient.

perfuser vs alimenter

Both mean 'to supply'.

Alimenter is general (food, electricity). Perfuser is medical/systemic support.

Alimenter une machine vs Perfuser une économie.

Sentence Patterns

Le [nom] va perfuser le [nom].

Le docteur va perfuser le patient.

Il faut perfuser le [nom] avec [substance].

Il faut perfuser le blessé avec du sérum.

On a dû perfuser [nom] pour [raison].

On a dû perfuser la victime pour la réhydrater.

L'État décide de perfuser [secteur] de [ressource].

L'État décide de perfuser le marché de liquidités.

La capacité à perfuser [organe] est [adjectif].

La capacité à perfuser le cœur est essentielle.

Bien qu'il soit vain de perfuser [concept]...

Bien qu'il soit vain de perfuser cette idéologie...

[Nom] est perfusé depuis [temps].

Le malade est perfusé depuis deux heures.

Après avoir été perfusé, le [nom] [verbe].

Après avoir été perfusé, le patient se sent mieux.

Word Family

Nouns

perfusion (f) - the act/device

perfusionniste (m/f) - the specialist

perfuseur (m) - the device/pump

Verbs

reperfuser - to perfuse again

Adjectives

perfusé(e) - being on a drip

perfusionnel - relating to perfusion

veine

sang

cathéter

goutte-à-goutte

seringue

How to Use It

frequency

High in medical and economic domains; low in daily casual speech.

Common Mistakes

Using 'infuser' for a patient. → Perfuser le patient.
'Infuser' is for tea; 'perfuser' is for IVs.
Pronouncing the final 'r'. → /pɛʁ.fy.ze/
In -er verbs, the 'r' is silent in the infinitive.
Using 'perfuser' for a quick injection. → Injecter le vaccin.
'Perfuser' implies a slow, continuous flow.
Perfuser dans le patient. → Perfuser le patient.
'Perfuser' is a direct transitive verb.
Confusing 'perfuser' with 'profuser'. → Perfuser.
'Profuser' is not a French verb.

Tips

Hospital Context

Always use 'perfuser' when talking about IV drips in a French hospital.

Direct Object

Remember that 'perfuser' needs a direct object (the patient or organ).

Economic Use

Use 'perfuser' in essays to describe artificial financial support.

The 'U' Sound

Practice the French /y/ sound to be understood by medical professionals.

Single 'S'

Don't double the 's'. It's 'perfuser', not 'perfusser'.

English Equivalent

Translate it as 'to put on a drip' rather than 'to perfuse' for natural English.

French News

Look for this word in headlines about 'le plan de sauvetage'.

Irriguer vs Perfuser

Use 'irriguer' for natural processes and 'perfuser' for medical intervention.

The Noun Form

Learn 'une perfusion' at the same time as the verb.

Medical Dramas

Watch 'Hippocrate' to hear 'perfuser' used in real-life medical scenarios.

Memorize It

Mnemonic

Imagine a 'PERfectly' 'FUSED' tube going into a patient's arm to help them. PER-FUSE-R.

Visual Association

Visualize a clear bag of liquid hanging on a metal pole next to a hospital bed. The liquid is 'perfusing' the patient.

Word Web

hôpital médecin infirmier sang veine médicament drip santé

Challenge

Try to write three sentences: one about a hospital, one about a bank, and one about a lab using the word 'perfuser'.

Word Origin

From the Latin 'perfundere', which combines 'per' (through) and 'fundere' (to pour).

Original meaning: To pour over, to drench, or to moisten.

Indo-European (Italic > Romance > French).

Cultural Context

Be careful when using it metaphorically; it can sound critical of the person or entity receiving the 'perfusion'.

English speakers rarely use 'perfuse' in daily life, preferring 'put on a drip'. In French, 'perfuser' is the standard verb.

TV Show: Hippocrate (Medical drama) News: Reports on 'Plan de Relance' (Economic aid) Literature: Clinical descriptions in modern French thrillers.

Practice in Real Life

Real-World Contexts

Hospital Emergency

Vite, il faut le perfuser !
Préparez le kit pour perfuser.
Où peut-on le perfuser ?
Il est déjà perfusé.

Economic News

Perfuser l'économie de fonds publics.
Une entreprise sous perfusion.
Arrêter de perfuser les banques.
Le secteur est perfusé par l'État.

Laboratory Research

Perfuser le cerveau du rat.
Solution pour perfuser les tissus.
Débit constant pour perfuser.
Organe perfusé ex vivo.

Surgery

Perfuser le greffon.
Maintenir la pression en perfusant.
Faut-il perfuser davantage ?
Le chirurgien perfuse l'artère.

Home Care

L'infirmière vient pour le perfuser.
Apprendre à se perfuser.
Matériel pour perfuser à domicile.
Surveillance après avoir perfusé.

Conversation Starters

"Savez-vous pourquoi il est nécessaire de perfuser ce patient avant l'examen ?"

"Pensez-vous que l'État doive continuer à perfuser les entreprises en difficulté ?"

"Avez-vous déjà vu comment on fait pour perfuser quelqu'un ?"

"Est-ce que l'infirmière a fini de perfuser le blessé dans la salle d'attente ?"

"Quels sont les risques quand on décide de perfuser trop vite ?"

Journal Prompts

Décrivez une scène dans un hôpital où un médecin doit perfuser un patient en urgence.

Donnez votre avis sur l'expression 'perfuser l'économie' : est-ce une bonne ou une mauvaise chose ?

Imaginez que vous êtes un infirmier. Expliquez à un patient pourquoi vous allez le perfuser.

Écrivez un court article de presse sur une entreprise sauvée parce que le gouvernement a décidé de la perfuser.

Racontez une histoire où un personnage se sent comme s'il était 'sous perfusion' émotionnelle d'un ami.

Frequently Asked Questions

10 questions

No, for tea you must use 'infuser'. 'Perfuser' is strictly for medical or systematic fluid delivery.

In medical and news contexts, yes. In daily casual conversation, it is rare unless talking about health.

'Perfuser' is the verb (the action), and 'perfusion' is the noun (the process or the device).

Yes, it is a common metaphor in French news to describe injecting money into a failing system.

Yes, it is a regular -er verb and follows the same conjugation rules as 'aimer'.

Technically yes, if they administer their own IV, but it is very rare.

Usually 'avec' to indicate the fluid: 'perfuser avec du sang'.

Neither. It's usually 'perfuser [object]' or 'perfuser [object] avec [fluid]'.

No, use 'arroser' or 'irriguer' for gardening.

You can say 'être perfusé' or 'être sous perfusion'.