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Specimen Collection Manual and Test Catalog

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PATERNAL RED BLOOD CELL PHENOTYPING

Geisinger Epic Procedure Code:  LAB2819    Geisinger Epic ID:  43710

SPECIMEN COLLECTION
Specimen type:  Whole blood
Preferred collection container: 
Specimen required: 
6 mL whole blood
Special notes: 
Specimen must be labeled with the patient's first and last name, MRN or some other unique identifier (e.g.billing number,NOT date of birth). date of collection and phlebotomist id must be available. Positive patient identification must be assured.

SPECIMEN PROCESSING
Processing instructions: 
Do not centrifuge or aliquot
Transport temperature: 
Preferred specimen: Room temperature (less then 24 hours). If greater than 24 hours specimen should be stored at 2-8°C.
Specimen stability: 
Specimen should be less than 3 days old for testing
Rejection criteria: 
Tube containing gel separator, non-serum separator tube. Incomplete label (see collection notes).

TEST DETAILS
CPT code(s):  86905
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
RBC agglutination and/or gel column technology
Synonyms: 
PATAG
Clinical significance: 
For prenatal patients with red cell antibodies, the father's red cells can be antigen typed for the relevant antigen. If the father has the antigen, the fetus could inherit the antigen and be at risk for HDN.
Doctoral Director(s): 
Randin Nelson MD
Review Date:  10/21/2022

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