Non-Invasive Prenatal Testing for RhD Genotyping, Fetal
2009077
 
Ordering Recommendation
Determine fetal genotype when mother has clinically significant alloantibody AND father is heterozygous for RHD or not available for testing.
Mnemonic
NIPT RHD
Methodology
Mass Spectrometry
Performed
Varies
Reported
1-2 weeks
N/A
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory.
Specimen Required
Patient Preparation
Collect specimens Monday through Wednesday only. Do not collect specimen the day before a holiday.  
Collect
Lavender (EDTA).  
Specimen Preparation
Transfer 20 mL maternal whole blood to ARUP Standard Transport Tubes. (Min: 16 mL)  
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated.  
Unacceptable Conditions
Multiple fetuses.  
Remarks
Mother must have Rh-negative blood type and be at least 12 weeks gestation. Gestational age at time of collection is required for testing.  
Stability
Ambient: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable  
Reference Interval
By report
Interpretive Data
Note
CPT Code(s)
84999
Components
Component Test Code*Component Chart Name
2009078RhD Genotyping, Fetal
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
Performed at Sequenom