Prealbumin Blood Test

Test Overview: Prealbumin Blood Test

This test measures the amount of prealbumin in the blood. Prealbumin is a protein that is made in the liver and released in the blood. It helps carry certain hormones that regulate the way the body uses energy and other substances through the blood.

Why It Is Done

A prealbumin blood test is done to:

• Check for signs of malnutrition.
• Find out if you're getting enough nutrients, mainly protein, in your diet. Protein is important for tissue growth and healing.
• Keep track of your nutrition while you're in the hospital or before and after surgery.
• See how well supplements or protein replacement fluids are working.

How To Prepare

In general, there's nothing you have to do before this test, unless your doctor tells you to.

How It Is Done

A health professional uses a needle to take a blood sample, usually from the arm.

How It Feels

When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick sting or pinch.

Risks

There is very little chance of having a problem from this test. When a blood sample is taken, a small bruise may form at the site.

Results

Normal

Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The normal range is just a guide. Your doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal range may still be normal for you.

High values

High prealbumin levels may be caused by:

• Hodgkin lymphoma.
• Kidney problems.
• Being pregnant.

Low values

Low prealbumin levels may be caused by:

• Malnutrition.
• Liver problems.
• Cancer.
• An infection.