S Antigen Typing - Patient
Also known as: S AG
Use
The S Antigen Typing - Patient test is used to determine if the S (MNS3) antigen is expressed on the patient's red blood cells. This evaluation is important for blood transfusion compatibility and understanding potential hemolytic reaction risks. If a determination of heterozygosity or homozygosity for the S antigen is required, it is recommended to also order Little s Antigen Typing - Patient (test code 2007721).
Special Instructions
This test has been approved by the New York State Department of Health. To ensure the accuracy of results, the specimen must not be frozen and should be transported as soon as possible.
Limitations
The test requires whole blood and is not suitable for plasma or serum separator tubes. Results may be affected if samples are not stored or transported under the recommended conditions. Ambient temperature storage is not acceptable, and freezing is contraindicated.
New York Approved
Methodology
Other
Biomarkers
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)
Storage Instructions
Refrigerated
Causes for Rejection
Separator tubes
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Unacceptable |