Maternal Testing (ABO/RhD Typing / Antibody Screen / Antibody ID)
Test Catalogue
Testing Schedule
- Rh unknown patients: For patient’s first pregnancy, order testing at initial visit and at 26-28 weeks.
- Known Rh positive patients: Order testing at initial visit.
- Known Rh negative patients: Order testing at initial visit, 26-28 weeks, and postpartum.
IMPORTANT
For Rh negative patients, the 26-28 week sample must be collected prior to RhIG administration.
Specimen and requisition requirements
Specimen:
One (1) 6 ml EDTA (lavender) tube, mixed thoroughly by gentle agitation.
Label specimen with the required minimum information: patient’s last name, first name, PHN or Unique Lifetime Identifier (ULI) and date of collection.
Complete Requisition (must include):
- Patient's last name, first name, date of birth and PHN or ULI
- Expected date of delivery (EDD)
- Clinic and Health Care Provider name, complete address, phone and fax number
- Phlebotomist ID information
- Date of collection
Requisition(s)
Perinatal Testing for Red Blood Cell Serology (PDF)
(Electronic Fillable Form)
Pre-shipping storage
Recommended Refrigeration 1-10°C
Shipping instructions
Submit samples as soon as possible after collection.
Shipping
Ship in a container that will maintain temperature at ≥1°C.
Select shipping method for container to arrive at testing site within 48 hours.
Note: Protect from freezing.
Send to
Canadian Blood Services
Edmonton Centre
8249 114 St NW
Edmonton, AB T6G 2R8
Attention: Diagnostic Services Perinatal Laboratory
Tel: 780-431-8765
Fax: 780-431-8747