1 - 2 weeks
GENERIC CYTOGENETICS TEST
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Detection of in utero chromosome abnormalities.
Interpretive report provided.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Optimal timing for specimen collection is during 16 to 18 weeks of gestation. Draw 20 mL to 25 mL of amniotic fluid in a sterile syringe, discarding the first 2 mL of amniotic fluid. Remove the needle and transfer the specimen to 2 screw-capped, sterile 15-mL clear, conical centrifuge tubes. Send specimen refrigerated. Specimen cannot be frozen.