Chromosome Analysis, Blood, Fanconi Mutagen Sensitivity
Abbrev Code: | FANCCG | ||
Order Code: | LAB4755 | Order Name: | Chromosome Analysis, Blood, Fanconi Mutagen Sensitivity |
Synonyms: | FANCON; DEB Test; Fanconi Anemia; Mutagen Stress Test | ||
Methodology: | Chromosome breakage analysis. | ||
CPT Codes: | 88230 x1, 88249 x1, 88291 x1 | ||
Turnaround Time: | Results are reported within 7-14 days. | ||
Special Instructions: | Test request form requires:
A signed informed consent in the patient's medical record is required. The consent should not be sent to the laboratory. A link to the Genetic Testing Consent Form is provided as a convenience for the providers and genetic counselors. See Associated Links. |
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Associated Links: |
Collection Instructions
Specimen: | Whole blood. |
Optimal Volume: | 5 mL |
Minimum\Peds Volume: | 3 mL |
Container: | Green (sodium heparin, no gel) |
Causes for Rejection: | Clotted or frozen specimen. Incorrect specimen collection tube (anticoagulant). |
Processing and Shipping
Specimen Processing: | Store at room temperature. Do NOT refrigerate or freeze.
Specimens must be received in the Cytogenetics laboratory Mon-Fri by 5:30 pm. Weekends and holidays by 4:30 pm. Specimens received after the above cut off times will be processed the following day. |
Shipping Instructions: | Ship at room temperature. |
Stability: |
For optimal testing results the specimen must arrive within 24 hours.
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Test Performed at or Referral Lab | Cytogenetics (UMMC East Bank) |
Interpretive
Use: | Useful for the differential diagnosis between idiopathic aplastic anemia and Fanconi anemia. After treatment with similar doses of bifunctional alkylating agents such as Diepoxybutane (DEB) or Mitomycin C (MMC), Fanconi anemia patients will typically show a greater than 50-fold increase in rates of chromosome breakage compared to concurrent controls or other aplastic anemia patients. |
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