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Reference Services

Diagnostic Services: AB - NWT

Diagnostic Services AB/NWT provides serological reference services for health care facilities located in northern Alberta, northeastern British Columbia, parts of the Northwest Territories and Lloydminster, Saskatchewan that are able to perform routine crossmatching procedures on-site. Our reference laboratory performs both simple and complex antibody investigations and has access to rare cells and anti-sera that may be useful for identifying antibodies to high and low prevalence antigens.

Referral Services:

  • Group Discrepancy Resolution
  • Red Blood Cell Antibody Identification
  • Resolution of Positive Direct Antiglobulin Test
  • Serological Investigation of Hemolytic Disease of Fetus and Newborn (HDFN)
  • Fetal Bleed Screening of Rh Negative Women
  • Fetal Genotyping on Maternal Plasma and Amniotic Fluid
  • RHD Genotyping

Reference Test Request / Sample Requirements

Test

Sample Requirements

Form / Comments

Group Discrepancy Resolution EDTA
2X 7mL
Requisition: Request for Serological Investigation
Red Blood Cell Antibody Investigation EDTA
2X 7mL

Requisition: Request for Serological Investigation

  • Referring hospital is responsible for compatibility testing.
Resolution of Positive Direct Antiglobulin Test EDTA
2X 7mL

Requisition: Request for Serological Investigation

Investigation of Hemolytic Disease of Fetus and Newborn (HDFN) Mother: EDTA
1X 7mL

Cord: Red Top
1X 7mL
or heel prick

Requisition: Request for Serological Investigation

Fetal Bleed Screening of Rh Negative Women EDTA
1 X 7mL

Requisition: Request for Serological Investigation

  • Test mother following birth or miscarriage if mother is Rh Negative and Baby is Rh positive or unknown.
  • Collect sample as soon as possible after birth or miscarriage (samples > two days old require a Kleihauer Betke test)
Fetal Genotyping on Maternal Blood

Mother: EDTA
3X 7mL

Father: EDTA
1X 7mL

Keep specimens at room temperature

Fetal Genotyping on Maternal Blood Testing Criteria and Collection Instructions

Requisition: International Blood Group Reference Laboratory

Consent for Release of Neonatal Test Results

Requisition: Perinatal Follow-up Testing for Red Blood Cell Serology
Fetal Genotyping on Amniotic Fluid

Mother: EDTA
1X 7mL

7-15mL of amniotic fluid in sterile container

Keep specimens at room temperature

Fetal Genotyping on Amniotic Fluid Testing Criteria and Collection Instructions

Requisition: Blood Center of Wisconsin Molecular Diagnostics Lab

Requisition: Perinatal Follow-up Testing for Red Blood Cell Serology
RHD Genotyping

EDTA
1X7mL

Must be received within 14 days of collection
Requisition: Request for RHD Genotyping