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FISH, SRY/X Centromere
Test Code14606
CPT Codes
88271 (x2), 88273
Includes
If one or more FISH tests are ordered on a specimen without chromosome analysis, a tissue culture will be added at an additional charge (CPT code: 88230).
If results are not possible, the test order may be canceled and replaced with a "Cytogenetics Communication".
If results are not possible, the test order may be canceled and replaced with a "Cytogenetics Communication".
Preferred Specimen
5 mL whole blood sodium heparin (green-top) tube
Minimum Volume
1 mL
Other Acceptable Specimens
Whole blood collected in: sodium heparin (royal blue-top), or sodium heparin lead-free (tan-top) tube
Instructions
Clinical history and reason for referral are required with test order.
Specimen Requirements: 3-5 mL whole blood collected in a sodium heparin tube.
Specimen viability decreases during transit. Send specimen to testing laboratory for viability determination. Do not freeze. Do not reject.
Specimen Requirements: 3-5 mL whole blood collected in a sodium heparin tube.
Specimen viability decreases during transit. Send specimen to testing laboratory for viability determination. Do not freeze. Do not reject.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: See instructions
Refrigerated: See instructions
Frozen: See instructions
Refrigerated: See instructions
Frozen: See instructions
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
Set up: Daily.; Report available: 7 days
Reference Range
See Laboratory Report
Clinical Significance
To aid in sex determination and investigation of Turner syndrome.