A1 Antigen Typing, Patient
Also known as: A1 AG
Use
A1 Antigen Typing is primarily used to aid in resolving ABO typing discrepancies and can be particularly useful in the context of organ or tissue transplantation. It provides important antigen typing information which is critical in the management of blood transfusion and solid organ transplantation where the presence or absence of specific antigen profiles could determine compatibility and reduce the risk of rejection or other immune-related complications.
Special Instructions
The specimen should be collected in a Lavender (K2EDTA) or Pink (K2EDTA) tube. It is crucial to ensure that the specimen is not frozen as this would render it unacceptable. The process of antigen typing can encounter interference if separator tubes are used, thus these are rejected.
Limitations
The test may not be performed if the specimen is frozen. Additionally, separator tubes are not acceptable for this test, which could limit specimen options and affect test results. It is important that specimens are refrigerated, as room temperature submission is unacceptable, and freezing compromises specimen integrity, potentially leading to inaccurate results.
FDA ApprovedNew York Approved
Methodology
Other
Biomarkers
LOINC Codes
- 844-1
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
7 mL
Minimum Volume
0.5 mL
Container
Lavender (K2EDTA) or Pink (K2EDTA) tube
Collection Instructions
Do not freeze the specimen. Ensure timely transportation under refrigerated conditions.
Causes for Rejection
Specimen frozen; use of separator tubes.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Unacceptable |
Other tests from different labs that may be relevant