Rh - Allina Health Laboratory

Rh

Alphabetical Test listing

Rh-6062

Test name:

Test number:

6062

Excellian order number:

86901.1

Abbreviation:

RHD

Alternate names:

Big D
D
Rhesus factor
Rho

Tests included:

If Rh (BigD) is negative, may reflex to Weak D (Du) test

Useful for:

Detection of the D (RH1) antigen on red blood cells.
May be used in the determination of the mother's candidacy for Rh immune globulin therapy.

Limitations:

Testing should be performed within 7 days of collection
Very weak expressions of the Rh D antigen may not be detected using traditional serologic methodologies

Specimen type:

EDTA whole blood

Collection container:

Lavender (EDTA), 4mL

Volume:

4.0 mL

Collection instructions:

Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting

Labelling instructions:

Excellian sites:
Tube must be labeled with the patients first and last name and Excellian MRN, date and time of collection and phlebotomist’s A#

Non-Excellian sites:
Tube must be labeled with the patient's first and last name and date of birth, date and time of collection and phlebotomist’s initials.

Processing instructions:

Transport container:

Lavender (EDTA), 4mL

Transport and stability:

Refrigerated - 7 days

Reason for rejection:

Improper label (unlabeled or mislabeled)
Hemolysis

Performing lab:

AHL - Blood Bank: B

Days set up:

Daily

TAT:

1 day

Method:

Agglutination

Column-agglutination

Reference ranges:

A positive test indicates the presence of the D antigen.

Clinical information:

The Rh blood group system is the second most important blood group system, after the ABO blood group system

CPT codes:

86901
86905 - Weak D (Du) (If appropriate)

Date created:

11/30/2001

Revised date:

01/02/2024

Review date:

12/31/2023