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Twin Zygosity Testing

CPT Code(s): 81265
Specimen Required: Patient Preparation:
Collect:From each twin: Lavender (EDTA), pink (K2EDTA), or yellow (ACD Solution A or B). Also acceptable: Buccal brushes.
Specimen Preparation:From each twin: Transport 3 mL whole blood (Min: 1 mL) Also acceptable: 2 buccal brushes.
Storage/Transport Temperature:Refrigerated.
Stability:Ambient: 72 hours; Refrigerated: 1 week; Frozen: Unacceptable
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • Fetal ZygosityMono/Dizygotic DifferentiationNewborn ZygosityZygosity, Twin Pre/Postnatal
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