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Test Code YCHROMO Y Chromosome Microdeletion, DNA Analysis

Performing Laboratory

Quest Diagnostics Nichols Institute, Chantilly VA


Agarose Gel Electrophoresis • Polymerase Chain Reaction (PCR)

Test Classification and CPT Coding



Set up: Monday, Wednesday, Friday  a.m.; Report available: 4 days

Specimen Required

Container/Tube: Lavender (EDTA) Top Tube

Specimen: 4 ml Whole Blood ( 3 ml min)

Transport Temperature: Room temperature



Computer Interface Code

PDM #  5902132

Used For

To detect Y chromosome microdeletions associated with oligospermia and azoospermia. About 15-20% of azoospermic men and about 10% of severely oligospermic men present with microdeletions of Yq. This test targets 20 genetic loci, including those recommended by the European Quality Monitoring Network Group (Int J Andr 22:292-299 (1999).