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Non-Invasive Prenatal Testing for RhD Genotyping, Fetal
2009077
Ordering Recommendation
Assess risk for alloimmune hemolytic disease of the newborn by analyzing fetal circulating cell-free DNA in maternal blood.
This test provides a fetal RhD genotype and gender using a maternal whole blood specimen.
Mother must be pregnant and greater than 10 weeks gestation at time of draw. Refer to Specimen Required section below for more specifics.
Mnemonic
NIPT RHD
Methodology
Mass Spectrometry
Performed
Varies
Reported
7-14 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Submit With Order
Specimen Required
Patient Preparation
 
Collect
Whole blood in two cell-free DNA BCT tubes (ARUP Supply #52543) available online through eSupply using ARUP Connect or contact ARUP Client Services at (800) 522-2787.  
Specimen Preparation
Transport 20 mL maternal whole blood. (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 greater than 10 weeks gestation. Gestational age at time of collection is required for testing.  
Stability
Ambient: 1 week; Refrigerated: 1 week; Frozen: Unacceptable  
Reference Interval
By report
Interpretive Data


Note
CPT Code(s)
81403 (SRY); 81479
Components
Component Test Code*Component Chart NameLOINC
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, please click the sidebar link to access the Interface Map.
Aliases

Performed at Sequenom