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albumin

The main protein in blood plasma, made by the liver, which holds fluid inside the blood vessels and carries drugs and hormones.

al-BYOO-min noun

What it means

A protein that keeps water from leaking out of the blood vessels into the tissues and carries many substances, including some drugs. The blood level falls with liver disease, kidney disease that leaks protein, poor nutrition, inflammation and burns. Albumin is also given by IV as a fluid to raise blood volume.

For the nurse

A low albumin can lead to edemaih-DEE-muhSwelling caused by extra fluid trapped in the body's tissues.Full entry and slow wound healing, and changes how much of some drugs is active. Because it changes slowly, prealbumin is sometimes used to follow short-term nutrition.

At a glance

Normal range3.5–5.0 g/dL [35–50 g/L]; each lab sets its own reference range.
Spanishalbúmina
Also writtenserum albumin, albumin level, albumin levels

Related terms

edema

Swelling caused by extra fluid trapped in the body's tissues.

cirrhosis

Long-term scarring of the liver, in which scar tissue replaces healthy tissue and keeps the liver from working normally.

kidney

One of two bean-shaped organs in the back of the belly that filter the blood and make urine.

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