​Transfusion Medicine Service (TMS)
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​Patient identification and sample labeling criteria for TMS

Blood component transfusions

Most serious and potentially fatal transfusion reactions are due to administration of a unit of blood to the wrong patient, so every precaution must be taken to correctly identify patient samples and intended recipients.  Non-lab personnel collecting samples for Transfusion Medicine must meet training and competency requirements in order for samples to be acceptable.  Contact your local TMS for more information.

All inadequately labelled samples submitted for Transfusion Medicine are rejected, without exception.

When to order a new crossmatch sample

​If the patient has ​Crossmatch expires ​Note

​Been transfused with red blood cells or platelets or pregnant in the last three (3) months

​96 hours after the sample has been collected

​Collection of a fresh blood sample within the 96 hr period is not required for additional blood cells or component requests or for ABO/Rh examination

Not been transfused with red cells or platelets, or been pregnant within the last three (3) months ​28 days (maximum) after TMS sample collection
Once the patient begins to receive red blood cells, the sample expiry time changes to 96 hours from the start of the first transfused unit

Crossmatch samples expire 96 hours from the start of the red blood cell transfusion.

Note: A crossmatch sample can only be used provided the patient continues to wear the TMS ID band associated with that sample (ie. patient wears the ID band with the same TMS ID number as was placed on the sample tubes at the time of collection).

Patients with antibodies

Additional time is required to crossmatch blood for patients with antibodies as the donor units of blood must be thoroughly tested for compatibility with the patient prior to release.  In some cases, crossmatch-compatible units must be shipped from a CBS referral centre.

IVIG/SCIG – Transition to New Product

Ordering guidelines for IVIG

All requests for IVIG transfusion must be approved. 

Renewal requests: Fax the IVIG Request form as well as the IVIG/SCIG Clinical Outcome Questionaire.

All patients receiving IVIG therapy must have regular clinical outcome assessments.

SCIG Home Infusion Program

All requests for SCIG home infusion must be approved.

Renewal requests: Fax the Physician Order form as well as the IVIG /SCIG Clinical Outcome Questionnaire to the IH IVIG/SCIG Coordinator at 250-962-4052.

Patient resources for SCIG


MoH     PCQO