Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: ALADW
Aminolevulinic Acid Dehydratase, Washed Erythrocytes
Useful For 
Suggests clinical disorders or settings where the test may be helpful
Confirmation of a diagnosis of aminolevulinic acid dehydratase deficiency porphyria
Genetics Test Information Provides information that may help with selection of the correct genetic test or proper submission of the test request
Aminolevulinic acid dehydratase (ALAD) activity is inhibited in other situations including hereditary tyrosinemia type 1, lead intoxication, and exposure to styrene, trichloroethylene, or bromobenzene. These causes should be ruled out when considering a diagnosis of ALAD deficiency porphyria (ADP). This method will not exhibit a decreased ALAD enzyme activity due to lead intoxication. This test should only be ordered when the specimen will be received at Mayo Clinic Laboratories within 24 hours of collection.
The preferred test for analysis of ALAD is ALAD / Aminolevulinic Acid Dehydratase (ALAD), Whole Blood.
This test will not detect lead intoxication.
Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.
The following algorithms are available in Special Instructions:
Special Instructions Library of PDFs including pertinent information and forms related to the test
Method Name A short description of the method used to perform the test
Enzymatic End point/Spectrofluorometric
NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.
Reporting Name Lists a shorter or abbreviated version of the Published Name for a test
Aliases Lists additional common names for a test, as an aid in searching
Porphobilinogen (PBG) Synthase
Doss Porphyria