E Antigen Typing - Patient
Also known as: E AG
Use
The E Antigen Typing - Patient test is used to determine if the E (RH3) antigen is expressed on the patient's red blood cells. Identifying the expression of the E antigen is important in blood transfusion compatibility and diagnosing Rh blood group variants. If the patient is to be further assessed for heterozygosity or homozygosity of the E antigen, it is recommended to also order the Little e Antigen Typing - Patient (2007943).
Special Instructions
This test is New York state approved, indicating compliance with New York Department of Health regulations for laboratory testing.
Limitations
The test is not suitable for samples collected in separator tubes, and it should not be frozen. Improper specimen collection or handling, such as the usage of unacceptable tubes or freezing of the sample, might lead to sample rejection or invalid results.
New York Approved
Methodology
Immunoassay (Hemagglutination)
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 transport is required, do not freeze.
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