Mar 16, 2015




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Molecular Diagnostics

STR Engraftment Unseparated Lineages, Whole Blood

STR Engraftment Unseparated Lineages, Whole Blood (HCSTREWB) Molecular Diagnostics Lab Test

Name: STR Engraftment Unseparated Lineages, Whole Blood

Test Name: STR Engraftment Unseparated Lineages, Whole Blood

Health Link Test Code: HCSTREWB


CPT Code(s): 81267

Methodology: PCR

Clinical Information:

Typically used to assess proportions of donor and recipient derived nucleated cells post stem cell transplant or in cases of suspected graft-vs-host disease.

Days Performed: Wed.

In-Lab Turnaround Time: 10 days.

Specimen: Blood

Collection Container: Lavender top

Collection Volume: 4 mL

Pediatric Collection Volume: 2 mL

Stability Ambient:

7 days

Stability Refridgerated:

3 weeks

Stability Frozen:

Not acceptable

Sample Analyzed: Whole Blood

Testing Volume: 2 mL

Pediatric Testing Volume: 1.2 mL

Specimen Transport:

Transport specimen to laboratory.



 >95% Donor DNA:  Predominantly Donor
 < 5% Donor DNA:  Predominantly Recipient
 5-95% Donor DNA:  Donor/Recipient Chimeric


Additional Information:

Test requires pre-transplant DNA samples on file in the laboratory for recipient and donor.


The performance characteristics of this test were validated by UWHC Clinical Laboratories. The U.S. Food and Drug Administration (FDA) has not approved or cleared this test; however, FDA approval or clearance is currently not required for clinical use of this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. The UWHC Clinical Laboratories is authorized under Clinical Laboratory Improvement Amendments (CLIA) to perform high-complexity testing.