RhD Genotyping
GTR Test Accession: Help GTR000521862.6
INHERITED DISEASE
Last updated in GTR: 2022-10-25
Last annual review date for the lab: 2023-06-08 Past due LinkOut
At a Glance
Monitoring; Risk Assessment
Rh-null, regulator type
Genes (1): Help
RHD (1p36.11)
Molecular Genetics - Sequence analysis of the entire coding region: PCR with allele specific hybridization
Molecular characterization of the the RH genes as an aid …
Not provided
Avoidance of invasive testing
Ordering Information
Offered by: Help
Versiti Diagnostic Laboratories
View lab's website
View lab's test page
Specimen Source: Help
Who can order: Help
  • Genetic Counselor
  • Health Care Provider
  • Licensed Physician
  • Nurse Practitioner
Test Order Code: Help
CPT codes: Help
**AMA CPT codes notice
Contact Policy: Help
Laboratory can only accept contact from health care providers. Patients/families are encouraged to discuss genetic testing options with their health care provider.
How to Order: Help
Test service: Help
Clinical Testing/Confirmation of Mutations Identified Previously
    OrderCode: 4455
Genetic counseling
Result interpretation
Test development: Help
Test developed by laboratory (no manufacturer test name)
Informed consent required: Help
Based on applicable state law
Pre-test genetic counseling required: Help
Decline to answer
Post-test genetic counseling required: Help
Decline to answer
Recommended fields not provided:
Conditions Help
Total conditions: 1
Condition/Phenotype Identifier
Test Targets
Genes Help
Total genes: 1
Gene Associated Condition Germline or Somatic Allele (Lab-provided) Variant in NCBI
Methodology
Total methods: 1
Method Category Help
Test method Help
Instrument *
Sequence analysis of the entire coding region
PCR with allele specific hybridization
* Instrument: Not provided
Clinical Information
Test purpose: Help
Monitoring; Risk Assessment
Target population: Help
Molecular characterization of the the RH genes as an aid to the clinical management of HDFN
Recommended fields not provided:
Technical Information
Test Comments: Help
Hemolytic disease of the fetus and newborn (HDFN) results from sensitization of the mother’s immune system to foreign antigens present on the red cells of the fetus. Many red cell antigen systems have been associated with HDFN when incompatibilities exist between the mother and fetus. When a pregnant woman presents … View more
Availability: Help
Tests performed
Entire test performed in-house
Analytical Validity: Help
Analytical sensitivity is >99% for mutations within the coding sequence and intron/exon borders.
Assay limitations: Help
The RhD assay detects the presence or absence of the RhD gene; it does not determine zygosity. Rare variant alleles may not be identified by these assays. Testing parental samples by phenotyping and genotyping is recommended in order to identify discrepancies that may lead to false-negative and false-positive results. Maternal … View more
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
No
Recommended fields not provided:
Regulatory Approval
FDA Review: Help
Category: FDA exercises enforcement discretion
Additional Information

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