Ordering Recommendation

Determine if the Cw (RH8) antigen is expressed on the patient's red blood cells.

Mnemonic
CW 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
Interpretive Data



No compliance statements are in use for this test.

Note
Hotline History
N/A
CPT Codes

86905

Components
Component Test Code* Component Chart Name LOINC
2013505 Cw_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
  • Cw antigen typing, RH8 antigen typing, C(w) antigen typing
  • RH8 antigen
Cw Antigen Typing, Patient