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Delta-ALA

Contents of this page:

Illustrations

Urine sample
Urine sample

Alternative Names    Return to top

Delta-aminolevulinic acid

Definition    Return to top

Delta-ALA is a protein produced by the liver. A test can be done to measure the amount of this protein in your urine.

How the Test is Performed    Return to top

Your health care provider will instruct you, if necessary, to stop taking drugs that may interfere with the test. A 24-hour urine sample is needed.

Infant:

Thoroughly wash and rinse the area between the lips of the vagina or the head of the penis. Open the urine collection bag (the plastic bag with an adhesive paper on one end), and place it on your infant. For males, the entire penis can be placed in the bag and the adhesive attached to the skin. For females, the bag is placed over the lips of the vagina.

Place a diaper over the infant (bag and all). The infant should be checked frequently and the bag changed after the infant has urinated into the bag. For active infants, this procedure may take a couple of attempts. Drain the urine into the container for transport to the laboratory. As with adults, the container must be kept refrigerated.

Deliver it to the laboratory or your health care provider as soon as possible upon completion.

Avoid exposure of the urine to direct light.

How to Prepare for the Test    Return to top

Your doctor may tell you to temporarily stop taking any drugs that may affect test results. Such drugs include penicillin, barbiturates, birth control pills, and griseofulvin, an antifungal medicine.

How the Test Will Feel    Return to top

The test involves only normal urination and there is no discomfort.

Why the Test is Performed    Return to top

This test looks for increased levels of Delta-ALA. It may be used to help diagnose porphyria.

Normal Results    Return to top

In general, the normal range is 1 to 7 milligrams per 24 hours.

What Abnormal Results Mean    Return to top

Increased levels of urinary delta-ALA may indicate:

Decreased levels may occur with chronic liver disease.

Risks    Return to top

There are no risks.

Update Date: 8/8/2008

Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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