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Test Code
CHPTP
Test Name
Chimerism, Posttransplant
CPT Codes
81267
Expected Turnaround Time
5 - 10 days
Clinical Utility
Use to monitor chimerism and engraftment in recipients of allogeneic hematopoietic stem cell transplant. Aids in evaluating the relative amounts of recipient and donor cells present post transplant.
Specimen and Container Info

Specimen

Containers

Desired Volume

Whole Blood

Lavender Top (EDTA)

2 mL

Bone Marrow

Lavender Top (EDTA)

1 mL
Collection Instructions
Collect specimen in EDTA tube via venipuncture or bone marrow collection procedure. Transport in original collection container.
Processing and Submission Instructions

**FOR STEM CELL TRANSPLANT ORDERS ONLY**
Patient Preparation
Posttransplant results will be compared to pretransplant recipient and donor genotypes, therefore, donor and recipient specimens must be obtained and genotyped before the transplant event occurs.
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

1 week

Refrigerated

1 month
Causes for Rejection
Frozen specimen.
Methodology
Polymerase Chain Reaction/Fragment Analysis
Reference Lab
ARUP Laboratories
Testing Schedule
Routine, daily
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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