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Alternative Names Return to top
Delta-aminolevulinic acidDefinition 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:
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.
