Test directory: Chromosome Analysis, Amniotic Fluid

Ordering Code 7984
Test Name Chromosome Analysis, Amniotic Fluid
Alias Karyotyping, Amniotic Fluid
Cytogenetics - AF Chromosome Analysis
Preferred Specimen Amniotic Fluid
Preferred Container Sterile Container
Optimum Volume 30 mL 15 to 20 mL for early amniocentesis
Collection Instructions Discard first 2 cc of amniotic fluid; then place 15-25 cc into 2 (15 mL) sterile container
If prior NIPT studies have been performed, include copy of the report.
Handling Instructions Do not centrifuge for any reason
Do not refrigerate or freeze.
Transport Requirements Oahu: Ambient
Airline: Ambient
Specimen Stability Ambient: 3 Days
Refrigerated: Not Stable
Frozen: Not Stable
Rejection Criteria Frozen, Specimen found not to be amniotic fluid, Gross contamination with blood cells, Container with rubber stopper (rubber is toxic to amniocytes)
Avail. Stat NO
Analytic Time Up to 10 Days
Methodology In situ cell culturing of amniocytes
Reference Lab  Labcorp

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Cells Counted ALL See report.
Colonies ALL See report.
Cells Analyzed ALL See report.
Cells Karyotyped ALL See report.
GTG Band Resolution Achieved ALL See report.
Cytogenetic Diagnosis ALL See report.
Cytogenetic Interpretation ALL See report.
Specimen Type ALL See report.
Director Review ALL See report.
PDF ALL See report.