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HelpTest Code LAB000 - Enter Specimen type, Source, and Test Name Chromosome Analysis, Hematologic Disorders, Fixed Cells
Additional Codes
Mayo test code: CHFXH
Useful For
Assisting in the diagnosis and classification of certain malignant hematological disorders in fixed cells
Evaluating the prognosis of patients with certain malignant hematologic disorders
Monitoring effects of treatment
Monitoring patients in remission
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| _ML20 | Metaphases, 1-19 | No, (Bill Only) | No |
| _M25 | Metaphases, 20-25 | No, (Bill Only) | No |
| _MG25 | Metaphases, >25 | No, (Bill Only) | No |
| _STAC | Ag-Nor/CBL Stain | No, (Bill Only) | No |
Testing Algorithm
This test only includes a charge for professional interpretation of results and does not include charges for analysis.
Analysis charges will be incurred for total work performed, and generally include 2 banded karyograms and the analysis of 20 or more metaphase cells for this test. If no metaphase cells are available for analysis, no analysis charges will be incurred. If additional analysis work is required, additional charges may be incurred. See the Method Description for specific details.
For more information see:
-Acute Promyelocytic Leukemia: Guideline to Diagnosis and Follow-up
-Bone Marrow Staging for Known or Suspected Malignant Lymphoma Algorithm
-Multiple Myeloma: Laboratory Screening
-Myeloproliferative Neoplasm: A Diagnostic Approach to Bone Marrow Evaluation
Special Instructions
Method Name
Chromosome Analysis
Reporting Name
Chromosomes, Hematol Fixed CellsSpecimen Type
VariesNecessary Information
A pathology and/or flow cytometry report may be requested by the Genomics Laboratory to optimize testing and aid in interpretation of results.
Provide a reason for testing and specimen type with each specimen. The laboratory will not reject testing if this information is not provided, but appropriate testing and interpretation may be compromised or delayed.
Specimen Required
Specimen Volume: 2 mL
Additional Information: Advise Express Mail or equivalent if not on courier service.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Ambient (preferred) | ||
| Refrigerated | |||
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
An interpretative report will be provided.
Day(s) Performed
Monday through Friday
Report Available
10 to 11 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
88291- Interpretation and report
88264 w/ modifier 52-Chromosome analysis with less than 20 cells (if appropriate)
88264-Chromosome analysis with 20 to 25 cells (if appropriate)
88264, 88285-Chromosome analysis with greater than 25 cells (if appropriate)
88283-Additional specialized banding technique (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CHFXH | Chromosomes, Hematol Fixed Cells | In Process |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 38487 | Result Summary | 50397-9 |
| 38488 | Interpretation | 69965-2 |
| 38489 | Result | 62356-1 |
| 38490 | Reason for Referral | 42349-1 |
| 38491 | Specimen | 31208-2 |
| 38492 | Source | 31208-2 |
| 38493 | Method | 85069-3 |
| 38494 | Banding Method | 62359-5 |
| 38495 | Additional Information | 48767-8 |
| 38496 | Released By | 18771-6 |