Alberta Precision Laboratories

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Organization:

Alberta Precision Laboratories

Message Alert:

PLEASE NOTE: This Test Directory is in an interim state and due to changes pertaining to the DynaLIFE transition, performing site for routing has not been updated. Please refer to Laboratory Information System for appropriate routing.

Test Name/Synonym:

Postnatal Evaluation Mother, Postnatal RhIg Eligibility, RHEV

Clinical Indications:

Postnatal evaluation for RhIG eligibility is performed on Rh Negative, Rh Unknown, or Rh Variant mothers of Rh Positive newborns, to determine RhIG eligibility. This test is also performed on RhD Positive mothers who have not had an ABORH and ABSC performed during the current pregnancy.
For Neonatal testing see Neonatal Evaluation

Test Includes:

Evaluation of maternal ABORH and antibody status. May be based on historical results and/or testing.
May include Fetal Maternal Hemorrhage Screen if mother is Rh negative and Neonate is Rh positive.

Ordering Alert:

Ensure Neonatal Evaluation has been ordered on the neonate.

LABID (Connect Care):

LAB4325

Specimen Type:

Blood

Specimen Source:

Venous, Arterial, Intraosseus

Primary Container:

Lavender Top - EDTA

Minimum Collection Volume:

1 mL

Specimen Collection Requirements:

It is best to wait about an hour after delivery to allow any fetal blood to mix thoroughly in the maternal circulation, but the sample should be collected as soon as possible thereafter.

Test Resources:

Transfusion of Blood Components and Blood Products policy PS-59 (ahsnet.ca)

Transfusion Medicine Requisition; 21448 (albertahealthservices.ca) Specimen Collection & Testing | Alberta Health Services

Specimen Collection & Testing | Alberta Health Services

Stability and Storage:

Refrigerated
Retained 7 days

Transportation:

Transport at room temperature within 6 hours of collection. If delivery to the laboratory will exceed 6 hours, transport at refrigerated temperature.

Specimen must be received at performing site within 24 hours of collection.

Method and Interpretation of Results:

An Rh negative, Rh unknown, or Rh variant mother is eligible for RhIG if she has not previously formed an immune anti-D and has delivered an Rh positive neonate (or stillbirth).

Testing Schedule:

Daily

Testing Area:

Transfusion Medicine

Performing Site:

Calgary Zone	Foothills Medical Center
Central Zone	Camrose General Hospital Red Deer Regional Hospital Centre
Edmonton Zone	Misericordia Hospital Royal Alex Hospital University of Alberta Hospital
North Zone	Bonnyville HC Cold Lake HC Edson HC Fort McMurray (Northern Lights Regional HC) Grande Prairie Regional Hospital High Level High Prairie St. Paul HC
South Zone	Chinook Regional Hospital Medicine Hat Regional Hospital

Last Updated On:

Wednesday, June 19, 2024