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Test Code RHO (Rh Phenotyping, Blood) Rh Phenotyping, Blood

Important Note

RH Only (RHO) is often mistakenly ordered by a physician. This is no longer an orderable test. If this is a request it is important to determine the indication from the provider. If the indication is for rhogam eligibility then the correct order is RHGE. If the indication is for an RH type then the correct order is a ABRH.

The RHO test referred to in this Bronson test catalogue is initiated by Blood Bank or available only by consultation with Blood Bank.

Additional Codes

Epic Order Code:  
Sunquest Order Code:  

Specimen Required

Patient Preparation:

 
Container Type:

Optimal: Pink Top

  

Acceptable:  Lavender

 

Optimal Collection Volume: 

6.0mL Whole Blood
Collection Instructions:

Collect specimen and gently invert several times to mix. Label the specimen, in the presence of the patient, with full name, date of birth and patient medical record number. 
Processing Instructions: 

1. Collect sample in pink top container.

2. Label per policy in the presence of the patient.

3. Send whole blood sample to Blood Bank for testing.

Useful For

Phenotyping is helpful in the evaluation of Rh Hemolytic Disease of the Fetus and Newborn (Rh-HDFN) and Autoimmune Hemolytic Anemia (AIHA). Includes testing for common antigens of the Rh system    (D, C, c, E, e).

Method Name

Tube

Stability Information

Specimen Type Temperature Time
  Refrigerated 3 days
  Ambient  1 day

Rejection Due To

Hemolysis Mild OK; Moderate OK; Gross Reject
Lipemia Mild OK; Moderate OK; Gross Reject
Icterus Mild OK; Moderate OK; Gross Reject
Other N/A

 

Post Processing Specimen Type

Whole Blood

Specimen Minimum Volume

Collecting minimum volumes can result in a need for sample recollection, and/or a delay in results. Minimum volumes are subjective and cannot account for all aspects of specimen and testing needs. Refer to the Specimen Required section for optimal volumes for laboratory specimens. Contact the Bronson Laboratory if complex collection exceptions occur that require more information.

 

Minimum Volume: 3.0mL whole blood
Neonate Volume: 1.0mL whole blood

Performing Laboratory

Bronson Laboratory, Blood Bank-Kalamazoo

Day(s) Performed

Moday through Sunday--day shift

CPT Code Information

86906

Sample Retention Time

Blood Bank specimens (other than Cord Blood) are retained in the Blood Bank for 30 days. Pretransfusioin testing should be completed within 2 days of collection.

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