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Test Code YMCRO Y Chromosome Microdeletions, Molecular Detection, Varies

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Evaluating men with azoospermia, severe oligozoospermia, or otherwise unexplained male factor infertility

Method Name

Polymerase chain reaction (PCR) is used to test DNA for the presence of microdeletions of the Y chromosome (region AZFa, AZFb, and AZFc).


Shipping Instructions


Specimen preferred to arrive within 96 hours of draw.



Specimen Required


Patient Preparation: A previous bone marrow transplant from an allogenic donor will interfere with testing. Call 800-533-1710 for instructions for testing patients who have received a bone marrow transplant.

Specimen Type: Whole blood

Container/Tube:

Preferred: Lavender top (EDTA) or yellow top (ACD)

Acceptable: Any anticoagulant

Specimen Volume: 3 mL

Collection Instructions:

1. Invert several times to mix blood.

2. Send specimen in original tube.


Reporting Name

Y Microdeletion

Specimen Type

Varies

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Ambient (preferred)
  Frozen 
  Refrigerated 

Reject Due To

All specimens will be evaluated by Mayo Clinic Laboratories for test suitability.

Day(s) and Time(s) Performed

Friday; 2 p.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

81403-DAZ/SRY (deleted in azoospermia and sex determining region Y) (eg, male infertility), common deletions (eg, AZFa, AZFb, AZFc, AZFd)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
YMCRO Y Microdeletion In Process

 

Result ID Test Result Name Result LOINC Value
53364 Result Summary 50397-9
53365 Result 82939-0
53366 Interpretation 69047-9
53367 Specimen 31208-2
53368 Source 31208-2
53369 Released By 18771-6

Forms

1. New York Clients-Informed consent is required. Document on the request form or electronic order that a copy is on file. The following documents are available in Special Instructions:

-Informed Consent for Genetic Testing (T576)

-Informed Consent for Genetic Testing (Spanish) (T826)

2. Molecular Genetics: Congenital Inherited Diseases Patient Information (T521) in Special Instructions