transfusion

trans-FEW-zhun /trænsˈfjuːʒən/
nounC1MCATNCLEXUSMLE
medicalclinical

The process of transferring blood or blood products from one person into the circulatory system of another.

Refers specifically to the intravenous administration of blood components, distinct from general fluid infusions like saline.

The story behind the word. In the 17th century, early physicians literally tried pouring blood from sheep directly into human veins. The Latin root 'transfundere' perfectly captures this image of pouring liquid across from one vessel to another, which eventually evolved into our modern, sterile clinical practice.

Word relationships

  • blood transfer: A simpler, less formal term rarely used in professional clinical settings.
  • phlebotomy: The act of drawing blood out of the body, whereas transfusion is putting blood in.

Commonly confused with

  • infusion: Infusion is the general introduction of any therapeutic fluid (like saline or medication) into a vein, while transfusion specifically involves blood or blood products.

Word family

  • transfuse (verb): To transfer blood or fluid into a vein.

Collocations

  • blood transfusion
  • emergency transfusion
  • massive transfusion protocol

Example sentences

  • "The patient lost a critical amount of blood during the accident and required an immediate blood transfusion." Emergency trauma care

Memory hook

Think of transferring a huge fuse of life-giving energy into someone's arm. Trans (across) + Fusion (pouring/joining together).

When not to use

Do not use when referring to transferring solid organs or transferring non-blood fluids.

Fun facts

  • The first successful human-to-human blood transfusion was performed in 1818 by James Blundell to treat postpartum hemorrhage.

Related words

recipient, compatible, plasma

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