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.
1 - 2 weeks
- Karyotype, Amniocentesis
- GENERIC CYTOGENETICS TEST
- TISSUE CULTURE-AMNIO
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.
For University of Michigan registered patients, when chromosome analysis is requested to rule out certain conditions such as Turner syndrome (when indicated based on initial diagnosis) or suspected mosaicism, an additional cell count and/or special stains will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated.