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HelpTest Code LSCA Lineage-specific Chimerism analysis
Additional Codes
| Epic Ordering Code | LAB3041315 |
| NBS code | LBC07565 |
| Service code | 1035702 |
Specimen Requirements
Submit the following:
| Preferred: |
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Purple Top |
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Processing Requirements
For post-transplant (Recipient):
Specimen Type: Whole Blood or Bone Marrow Aspirate
Specimen Volume: 6.0 mL (at least 1.0 mL for bone marrow aspirate)
Storage/transport requirements: Ambient or refrigerated
Whole blood or bone marrow aspirate sample will be sent to Stem Cell Laboratory for small scale cell selection before process
Specimen Stability
| Specimen Type | Whole Blood or Bone Marrow Aspirate |
| Ambient | 3 days |
| Refrigerate | 7 days |
| Specimen Type | CD3 cells from Whole Blood or Bone Marrow Aspirate |
| Refrigerate | 72 hours |
Specimen Condition
| Clotted, Haemolysed, Frozen | Reject |
| Anticoagulant other than EDTA | Reject |
| Improperly labelled specimen | Reject |
Methodology
Polymerase Chain Reaction, Fragment Analysis
Days and Times Performed
TAT 14 days
Reference Interval
An interpretative report will be provided.
Testing Laboratory
National University Hospital
Genomics Diagnostic Laboratory, 67724384
Useful For
For detection of the relative amounts of donor and recipient cells (or mixed chimerism) in the CD3 specimen of allogenic stem cell transplant patients. This is an indicator of bone marrow transplant success.
Update
Last updated 10/07/2026