LEA Antigen Typing - Patient
Also known as: LEA AG
Use
The LEA Antigen Typing - Patient test determines if the Le(a) (LE1) antigen is expressed on a patient's red blood cells. This antigen is a key component in transfusion medicine and blood typing, relevant in contexts such as blood transfusion compatibility and hemolytic disease of the newborn.
Special Instructions
It is recommended to order this test concurrently with LEB Antigen Typing - Patient (2007723) to ensure comprehensive antigen evaluation. Specimens must be transported refrigerated and separator tubes are unacceptable.
Limitations
The test is performed using hemagglutination, which has limitations in certain clinical conditions such as weak reactivity in antigen-antibody complex formations. False negative results may occur if the antigen is expressed at very low levels or if the patient has developed antibodies that are not detectable by this methodology.
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)
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