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Test Details
Turnaround Time
7 - 28 days Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
This test detects microdeletions in three azoospermia factor chromosome regions (Yq11.23) that contain genes with a role in spermatogenesis. Deletions of all or part of these regions, designated AZFa, AZFb, and AZFc, cause variable clinical symptoms in 5% to 13% of infertile men, ranging from azoospermia and Sertoli cell-only syndrome to severe or mild oligospermia.
Limitations
False-positive and false-negative results may occur for reasons that include genetic variants, blood transfusions, bone marrow transplantation, erroneous representation of family relationships, or contamination of a fetal sample with maternal cells.
Specimen Requirements
Information on collection, storage, and volume
Specimen
Whole blood
Volume
20 mL
Container
Lavender-top (EDTA) tube or yellow-top (ACD-A) tube
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Frozen specimen; hemolysis; quantity not sufficient for analysis; improper container; unlabeled or mislabeled specimen