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FISH, Product of Conception (POC) Panel
Test Code14820
CPT Codes
88271 (x7), 88274 (x3)<br /> **This test is not approved New York for patient testing.**
Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.
Preferred Specimen
5 x 5 mm tissue collected in a sterile container in Hank's Ringer's Solution or Culture medium with antibiotics
Minimum Volume
2 x 3 mm
Other Acceptable Specimens
2 x 3 mm tissue in a formalin-fixed, paraffin-embedded block
Instructions
See Genetics Specimen Collection Section for detailed specimen instructions.
Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. **Do not reject**
Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. **Do not reject**
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: Preferred
Refrigerated: Acceptable
Frozen: Unacceptable
Refrigerated: Acceptable
Frozen: Unacceptable
Methodology
Fluorescence in situ Hybridization (FISH)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
A.M.
Limitations
The FISH test is limited in that it only counts the number of each of the included chromosomes (13, 16, 18, 21, 22, X, and Y). This assay will not detect chromosome mosaicism, duplications, deletions, or structural rearrangements and does not identify all birth and/or developmental abnormalities.
Clinical Significance
Approximately 15% of all clinically recognized pregnancies are spontaneously aborted (SAB). A significant number of these samples in culture do not yield metaphase cells to perform cytogenetic studies. Using FISH probes will allow for detecting common cytogenetic abnormalities.