Rh Type Test
This test measures whether Rh antigens are present on red blood cells. It can be ordered through Celio Health.
About this test
A 5 mL whole blood sample, collected in an EDTA (pink-top) tube, is analyzed using immune agglutination to determine Rh antigen status. Quest lists this test under several names, including D Antigen, Rh D Typing, Rhesus Antigen, Rho-D, Du (Rh) Blood Factor, Rh Factor D and Rho D.
The Rh antigen is part of the Rh blood group system, which Quest links to antibody responses associated with hemolytic disease of the newborn. Quest describes antibodies to Rh antigens, along with ABO antigens, as among the most common causes of that condition, which is why Rh type may be ordered.
Test details
| Quest code | 792 |
|---|---|
| Methodology | Immune Agglutination |
| Sample type | 5 mL whole blood |
| Collection | Quest patient service center |
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Additional details
What this test looks at
The test reports Rh antigen status on red blood cells, part of the Rh blood group system. Quest describes antibodies to Rh antigens, along with ABO antigens, as among the most common causes of hemolytic disease of the newborn, which is the reason Quest lists for ordering this test.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does the Rh type test measure?
It measures whether Rh antigens are present on red blood cells, using immune agglutination on a whole blood sample.
How is the sample collected?
The test uses a 5 mL whole blood sample, collected in an EDTA (pink-top) tube, from a routine blood draw.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
Why might a clinician order an Rh type test?
Quest describes antibodies to Rh antigens, along with ABO antigens, as among the most common causes of hemolytic disease of the newborn, which is the reason this test is ordered.
Is Rh type known by other names?
Yes. Quest lists aliases including D Antigen, Rh D Typing, Rhesus Antigen, Rho-D, Du (Rh) Blood Factor, Rh Factor D and Rho D.
Can I get the RH Type test without a doctor's visit or insurance?
Yes. The $19 cash price includes an independent physician's order, so no referral is needed, and insurance is never involved.