Days Set Up
Monday, Thursday
Analytic Time

2 - 7 days

MiChart Code
Ala Dehydratase, Whole Blood
Soft Order Code
ALADB

Test Updated:

Synonyms

Aminolevulinic Acid Dehydratase (ALA-D), RBC
ADADR
ALA Dehydratase, RBC
ALADB
ALA Dehydratase, BLOOD
ALA Dehydratase, Whole Blood

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Test Overview

Test Methodology

Enzymatic End point/Spectrofluorometric

Test Usage

Confirmation of a diagnosis of aminolevulinic acid dehydratase deficiency porphyria (ADP).

Reference Range

> or = to 4.0 nmol/L/sec (normal), 3.5 - 3.9 nmol/L/sec (indeterminate), <3.5 nmol/L/sec (diminished). Reference ranges have not been established for patients who are <16 years of age.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Patient should abstain from alcohol for 24 hours and be off medications for 1 week prior to specimen collection. If it is clinically inappropriate to discontinue medications, forward a list of medications with the specimen. Collect blood in a green top tube from a fasting patient (12 - 14 hour fast). Place on wet ice immediately.

Collection Offsite

Patient should abstain from alcohol for 24 hours and be off medications for 1 week prior to specimen collection. If it is clinically inappropriate to discontinue medications, forward a list of medications with the specimen. Collect blood in a green top tube from a fasting patient (12 - 14 hour fast). Place on wet ice immediately. Refrigerate and send intact whole blood within 24 hours of collection.

Normal Volume
5 mL heparinized whole blood
Minimum Volume
3 mL heparinized whole blood

Billing Information

CPT Code
82657
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.