ARUP's Laboratory Test Directory
| 0092615: Chromosome Analysis, FISH-Interphase |
![[ image for: Time Sensitive]](icon_1.jpg){kind=icon} | Time Sensitive | ![[ image for: Patient History For Cytogenetics (Chromosome) Studies]](icon_20.jpg){kind=icon} | Patient History For Cytogenetics (Chromosome) Studies |
| Test Mnemonic: CHROMFISHI | |
|
Methodology: Fluorescence in situ Hybridization
Performed: On request Reported: Varies |
| Specimen Required: | |
|
Collect: One 10 mL green (sodium heparin). Also acceptable: 3 mL non-diluted bone marrow aspirate collected in a heparinized syringe and transferred into a green (sodium heparin). Other sample types may be acceptable, contact the Cytogenetics Laboratory for specific specimen collection and transportation instructions.
Transport: 10 mL whole blood or 3 mL bone marrow at 20-25°C. (Min: 5 mL whole blood or 1 mL bone marrow) Remarks: It is recommended that all FISH studies be done in conjunction with routine cytogenetic analysis. (Refer to appropriate Chromosome Analysis test for order instructions). If FISH only is requested, please include copy of previous cytogenetics report. If cell pellets or dropped cytogenetics slides are not submitted, a processing fee will apply. Unacceptable Conditions: Frozen, clotted, or paraffin-embedded specimens. Stability: Ambient: 48 hours; Refrigerated: Unacceptable; Frozen: Unacceptable |
|
| Reference Interval: |
| By report |
| Note: | |
|
Fluorescence in situ hybridization (FISH) is performed for specific abnormalities as follows: Translocation breakpoints in leukemia (e.g., t(9;22) or t(15;17)), clonal aneuploidy in leukemia Time of testing can vary depending on sample type and probes ordered. This test must be ordered using a Cytogenetic test request form 43099 or through your ARUP interface. Please submit the Cytogenetics and Chromosome Studies Information Form with the Electronic Packing List. The form is available on ARUP's Web site, http://www.aruplab.com/home/consent_forms.jsp. 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 sample integrity is inadequate to allow culture growth. The fee will vary based on sample type. |
| CPT Code(s): | |
| 88271 DNA probe each; 88275 Interphase in situ hybridization 100-300 each; 88291 Interpretation and report - Additional CPT codes modifiers may be required for procedures performed to test for oncologic or inherited disorders. |