Ordering Recommendation
Determine if the E (RH3) antigen is expressed on the patient's red blood cells. To determine if the patient is heterozygous or homozygous for the E antigen, Little e Antigen Typing - Patient (2007943) should also be ordered.
Mnemonic
E AG
Methodology
Hemagglutination
Performed
Mon-Fri
Reported
1-3 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Lavender (K2EDTA) or Pink (K2EDTA).
Specimen Preparation
Do not freeze. Transport 7 mL whole blood. (Min: 0.5 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Separator tubes.
Remarks
Stability
Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Unacceptable
Reference Interval
By report
Interpretive Data
Compliance Category
Standard
Note
Hotline History
N/A
CPT Codes
86905
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
2007942 | E Antigen Typing, Patient |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Big E Antigen Typing
- RH3 antigen
E Antigen Typing - Patient