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Chromosome Analysis, Amniotic Fluid
Ordering Recommendation
Prenatal chromosome analysis on amniotic fluid when individual
• Is at increased risk for fetal aneuploidy based on maternal age, abnormal noninvasive prenatal testing (NIPT), abnormal multiple marker screening, or abnormal fetal ultrasound.
• Has a family history of chromosome abnormality or genetic disorder.
• Desires diagnostic testing instead of screening.
Methodology
Giemsa Band
Performed
Sun-Sat
Reported
7-14 days
New York DOH Approval Status
Specimen Required
Amniotic fluid.
Do not freeze or expose to extreme temperatures. Transport 30 mL amniotic fluid in a sterile container. (Min: 15 mL)
Room temperature.
Frozen specimens. Bloody specimens.
Ambient: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Reference Interval
By report
Interpretive Data
Refer to report
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Counseling and informed consent are recommended for genetic testing. Consent forms are available online.
Laboratory Developed Test (LDT)
Note
These studies involve culturing of living cells; therefore, turnaround times given represent average times, which are subject to multiple variables.
A processing fee will be charged if this procedure is canceled at the client's request after the test has been set up or if the specimen integrity is inadequate to allow culture growth.
Specimen and completed test request form, including clinical indication, must be received within 48 hours of collection.
This test must be ordered using Cytogenetic test request form #43098 or through your ARUP interface. Please submit the Patient History for Prenatal Cytogenetics form with the electronic packing list (https://ltd.aruplab.com/Tests/Pdf/65).
Hotline History
CPT Codes
88269; 88235
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0097601 | Chromosome Analysis, Amniotic Fluid | 33773-3 |
| 2002199 | EER Chromosome Analysis Amniotic Fluid | 11526-1 |
Aliases
- Karyotype, Amniotic Fluid
- NIPD confirmation study
- NIPT confirmation study
- Prenatal Diagnosis, Amniotic Fluid, Prenatal Chromosomes, Amniotic Fluid
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