Cytogenetics Amniotic Fluid Chromosome Analysis
88235; 88269; 88280; 88285
15-20 mitotic spreads counted from separate in situ colonies and 2 banded karyotypes prepared
Please call our Client Services Department prior to sending first specimen. If additional testing such as DNA is indicated, call Client Services for further specimen requirements.
Expected Turnaround Time
9 - 12 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
20-30 mL (15-20 mL for early amniocentesis)
Two 15 mL sterile orange-top tubes
Discard first 2 mL; then 15-25 mL amniotic fluid (less if early amniocentesis)
Maintain specimen at room temperature. Do not freeze.
Causes for Rejection
Frozen specimen; hemolysis; quantity not sufficient for analysis; improper container; unlabeled or mislabeled specimen)
Determine fetal karyotype.