Albumin

Definition

Albumin is a protein made by the liver that plays a crucial role in maintaining oncotic pressure and transporting various substances in the blood. It is essential for proper fluid distribution between body compartments.

5 Must Know Facts For Your Next Test

1. Albumin levels can be indicative of nutritional status, liver function, and overall health.
2. Hypoalbuminemia (low albumin levels) can lead to edema and is commonly seen in malnutrition, liver disease, and kidney disease.
3. Albumin helps transport hormones, vitamins, drugs, and ions through the bloodstream.
4. Normal serum albumin levels typically range from 3.5 to 5.0 g/dL in adults.
5. In neurological patients, adequate albumin levels are crucial for maintaining blood-brain barrier integrity.

Review Questions

• What is the primary function of albumin in the human body?
• How can hypoalbuminemia affect a patient's health?
• Why are albumin levels important to monitor in patients with liver or kidney disease?

Related terms

Oncotic Pressure: The pressure exerted by proteins, such as albumin, in a blood vessel's plasma that tends to pull water into the circulatory system.

Hypoalbuminemia:

A medical condition characterized by low levels of albumin in the blood.

Edema:

Swelling caused by excess fluid trapped in the body's tissues, often related to low albumin levels.