Sd(a) Antigen Typing, Patient
Also known as: SDA AG
Use
The Sd(a) Antigen Typing test is designed to determine whether the Sd(a) antigen is expressed on a patient's red blood cells. This test is particularly significant in transfusion medicine for ensuring compatibility and in the identification of rare blood group antigens, which can be critical for patients with transfusion needs.
Special Instructions
The test requires specific handling of the blood specimen to ensure the accuracy of results. It is important to note that separator tubes are unacceptable for the specimen collection.
Limitations
The test is limited to detecting the presence of the Sd(a) antigen on red blood cells. It does not provide information about other blood group antigens or rare variants. Additionally, improper specimen handling, such as freezing or using separator tubes, can lead to rejection of the specimen and potentially inaccurate results.
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)
Collection Instructions
Collect in Lavender (K2EDTA) or Pink (K2EDTA) tubes. Do not freeze.
Storage Instructions
Refrigerated transport required.
Causes for Rejection
Separator tubes, frozen specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Unacceptable |