Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: CHRBM
Chromosome Analysis, Hematologic Disorders, Bone Marrow
Useful For 
Suggests clinical disorders or settings where the test may be helpful
Assisting in the diagnosis and classification of certain malignant hematological disorders
Evaluating the prognosis in patients with certain malignant hematologic disorders
Monitoring effects of treatment
Monitoring patients in remission
Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial 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 Delineates situations when tests are added to the initial order. This includes reflex and additional tests.
This test includes a charge for cell culture of fresh specimens and professional interpretation of results. Analysis charges will be incurred for total work performed, and generally include 2 banded karyograms and the analysis of 20 metaphase cells. 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.
The following algorithms are available in Special Instructions:
-Acute Myeloid Leukemia: Testing Algorithm
-Acute Myeloid Leukemia: Relapsed with Previous Remission Testing Algorithm
-Acute Promyelocytic Leukemia: Guideline to Diagnosis and Follow-up
-B-Lymphoblastic Leukemia/Lymphoma Algorithm
-Bone Marrow Staging for Known or Suspected Malignant Lymphoma Algorithm
-Laboratory Screening Tests for Suspected Multiple Myeloma
-Myelodysplastic Syndrome: Guideline to Diagnosis and Follow-up
-Myeloproliferative Neoplasm: A Diagnostic Approach to Bone Marrow Evaluation
If this test is ordered and the laboratory is informed that the patient is on a COG protocol, this test will be canceled and automatically reordered by the laboratory as COGBM / Chromosome Analysis, Hematologic Disorders, Children’s Oncology Group Enrollment Testing, Bone Marrow.
Special Instructions Library of PDFs including pertinent information and forms related to the test
- Laboratory Screening Tests for Suspected Multiple Myeloma
- Myeloproliferative Neoplasm: A Diagnostic Approach to Bone Marrow Evaluation
- Bone Marrow Staging for Known or Suspected Malignant Lymphoma Algorithm
- Myelodysplastic Syndrome: Guideline to Diagnosis and Follow-up
- Acute Promyelocytic Leukemia: Guideline to Diagnosis and Follow-up
- B-Lymphoblastic Leukemia/Lymphoma Algorithm
- Acute Myeloid Leukemia: Testing Algorithm
- Acute Myeloid Leukemia: Relapsed with Previous Remission Testing Algorithm
Method Name A short description of the method used to perform the test
Cell Culture without Mitogens* followed by Chromosome Analysis
*In addition to the cell culture without mitogens, a CpG-stimulated culture will be added and 10 additional cells will be analyzed for any specimen received from a patient age 30 or older with a reason for referral of chronic lymphocytic leukemia, small lymphocytic leukemia, lymphocytosis, Waldenstrom macroglobulinemia, or when test CLLF / Chronic Lymphocytic Leukemia (CLL), FISH is ordered concurrently.