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Prior Authorization Required*
*If prior authorization is not submitted, test may be delayed.
Test Overview
Test Methodology

Multiplex Polymerase Chain Reaction (PCR)

Test Usage

To evaluate and monitor the bone marrow engraftment status after the transplant.

Reference Range *

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

If the patient has a very low white blood cell count, the DNA yield may be insufficient to complete the analysis. A BMT pre-transplant analysis must have been done and polymorphism detected in order to perform this test. Both the patient's pre-transplant and the donor's specimen must be available. Specimens submitted for Molecular Diagnostics testing may contain substances that can inhibit PCR gene amplification. If an inhibitor is known to be present, attempts will be made to clear the specimen of inhibitor prior to amplification. Known inhibitors include heparin, medications and some levels of hemoglobin or IgG. The major inhibitor we see in our laboratory is heparin; avoid drawing blood in a heparin tube or through a heparinized port. For molecular diagnostics testing, a lavender top (EDTA) tube is preferred. If specimens containing heparin must be submitted, note "heparin" on the requisition to alert the lab to 'clean' the specimen before analysis thus reducing turnaround time, improving retention of DNA in the specimen and increasing our ability to return a conclusive result.

Test Details
Analytic Time

2 - 7 days

Soft Order Code
MiChart Code
Post BM Engraftment Evaluation
  • Bone Marrow Transplant Engraftment Evaluation
  • Engraftment Status Evaluation
  • Post-BMT Engraftment Analysis
  • VNTR for post-BMT Engraftment Analysis
  • Post BM Engraph. Eval
  • Chimerism Analysis, Post-Transplant
  • POST
  • POST
  • CD3/CD33
Molecular Diagnostics
Molecular Diagnostics
Specimen Requirements
Collection Instructions

Collect blood or bone marrow in lavender top tube. Send intact specimen at room temperature or refrigerated.

Alternate Specimen
The preferred specimen is EDTA (purple top). No other additives are allowed.
Normal Volume
5 mL EDTA whole blood; 1 mL EDTA bone marrow. Extracted DNA is also acceptable if extracted in a CLIA certified laboratory.
Minimum Volume
3 mL EDTA whole blood; 0.5 mL EDTA bone marrow
Additional Information

By ordering this test the clinician acknowledges that informed consent has been obtained from the patient as required by applicable state or federal laws and the ordering clinician has authorization from the patient permitting MLabs to report the test results to the ordering clinician. Test includes pathologist interpretation of results billed as a separate additional charge. This test is not available without interpretation.

CPT Code
81267 without cell selection; 81268 with cell selection
Fee Code
21654 without cell selection; 21655 with cell selection
Pro Fee CPT
NY State Approved