JKA Antigen Typing - Patient
Also known as: JKA AG
Use
The JKA Antigen Typing test determines if the Jk(a) (JK1) antigen is expressed on the patient's red blood cells. This is important for assessing the antigenic profile of the patient, which can be crucial for blood transfusion compatibility. This test is especially relevant if the patient is heterozygous or homozygous for the Jk(a) antigen. JKB Antigen Typing can be performed alongside to provide a comprehensive profile.
Special Instructions
To determine if the patient is heterozygous or homozygous for the Jk(a) antigen, JKB Antigen Typing - Patient (2007729) should also be ordered. It is crucial to collect the specimen in a Lavender (K2EDTA) or Pink (K2EDTA) tube.
Limitations
The test has inherent limitations due to the nature of hemagglutination as a methodology. It requires proper handling and refrigeration of the specimen; transport or storage conditions outside the specified range could affect the results. Additionally, the test may not detect weak D phenotypes or low-frequency antigens. Hemolysis, improper specimen collection, or samples collected in the unacceptable separator tubes can lead to rejection.
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) tube
Storage Instructions
Refrigerated.
Causes for Rejection
Separator tubes.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Unacceptable |
Other tests from different labs that may be relevant