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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: | Type and Screen (Pretransfusion Testing, Group and Screen, Crossmatch) | ||||||||||||||||||||||||||||||||||||||||
Clinical Indications: | Required for transfusion of red blood cells (RBC). Required in Central Zone for transfusion of plasma, platelets and cryoprecipitate. Refer to blood product information monographs for clinical indications for transfusion | ||||||||||||||||||||||||||||||||||||||||
Test Includes: | ABORH (Blood type) Antibody Screen Type and Screen Expiry Date (where applicable) | ||||||||||||||||||||||||||||||||||||||||
Ordering Alert: | Express, written, informed consent is required for transfusion. NOT for prenatal screening. Prenatal screening is performed by CBS. A separate order is required for blood components. Electronic order (Epic, SCM, Meditech) or use of a Transfusion Medicine Requisition is required. A valid/recent type and screen is required prior to ordering red blood cells for transfusion.
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Collection Alert: | Specimens must be collected using the zone’s Transfusion Service Identification Number (TSIN) system. STAT requests require transfusion service notification. | ||||||||||||||||||||||||||||||||||||||||
LABID (Connect Care): | LAB276 | ||||||||||||||||||||||||||||||||||||||||
Test Code: | CALGARY ZONE: TS OR TS RURAL CENTRAL ZONE: TS (LOCAL) TSREF (CZ PAC) OR TSRO (CALGARY PAC) NORTH ZONE: TS OR TSRO SOUTH ZONE: TS (LOCAL) TSRO OR TMSO (EXTERNAL PAC CLINIC) TSREF (BROOKS TO MHRH) | ||||||||||||||||||||||||||||||||||||||||
Specimen Type: | Blood | ||||||||||||||||||||||||||||||||||||||||
Specimen Source: | Venous, Arterial, Intraosseus | ||||||||||||||||||||||||||||||||||||||||
Primary Container: | Lavender Top - EDTA | ||||||||||||||||||||||||||||||||||||||||
Minimum Collection Volume: |
(Additional volume is required for patients with antibodies or requiring multiple units for transfusion.) | ||||||||||||||||||||||||||||||||||||||||
Specimen Collection Requirements: | Contact Transfusion Medicine if patient is already wearing a TSIN wristband. Do not remove an existing TSIN wristband without consulting Transfusion Medicine. Collect number and sizes required for patient age.
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Test Resources: | Transfusion Service Identification Number Calgary Zone, Central Zone (former DTH):, North Zone: (Connect Care sites), South Zone: TSIN Form 21505 ordered through Data CM Resource: Completing a TSIN Form Additional Information at www.ahs.ca/labtransfusion Central Zone (former ECH): Transfusion Medicine ID Edmonton Zone: EZ Transfusion Sample Labelling North Zone (non Connect Care sites): North Zone Type and Screen Collection Requisitions: APL Transfusion Medicine Requisition Calgary Zone (non Connect Care sites: Pretransfusion Testing Requisition Edmonton Zone:Regional Blood Transfusion Service Requisition Transfusion Policy & Procedure AHS Transfusion of Blood Components and Products Policy | ||||||||||||||||||||||||||||||||||||||||
Stability and Storage: | Refrigerated 1-60C. Retained for minimum of 7 days post transfusion. | ||||||||||||||||||||||||||||||||||||||||
Processing: | Send properly labelled specimens and their accompanying TSIN form to Transfusion Medicine. | ||||||||||||||||||||||||||||||||||||||||
Transportation: | Notify transfusion medicine if a STAT sample is being shipped, and the method of transport. | ||||||||||||||||||||||||||||||||||||||||
Method: | Antibody screen: indirect antiglobulin test. | ||||||||||||||||||||||||||||||||||||||||
Method and Interpretation of Results: | Compatible blood may be delayed or unavailable for patients with a positive antibody screen. | ||||||||||||||||||||||||||||||||||||||||
Routine Turn Around Time: | Stat – performed within 90 minutes for ED patients, or 120 minutes for hospital patients if ordered at a testing site and required for transfusion. Results may be delayed if antibodies are detected. | ||||||||||||||||||||||||||||||||||||||||
Testing Schedule: | Daily | ||||||||||||||||||||||||||||||||||||||||
Reference Interval: | Antibody screen: negative | ||||||||||||||||||||||||||||||||||||||||
Critical Value: | Positive antibody screens will be phoned in urgent situations or when availability of compatible blood will be delayed. | ||||||||||||||||||||||||||||||||||||||||
Testing Area: | Transfusion Medicine | ||||||||||||||||||||||||||||||||||||||||
Performing Site: |
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Additional Test Information: | Blood component transfusions must be arranged at the transfusing location. A separate order is required for blood component preparation. Express, written (signed) informed consent is required prior to transfusion Consent to Treatment Policy *Pre-admission clinics may request collection up to 30 days in advance of scheduled surgery, if the patient has not been transfused or pregnant within the previous 3 months (see local policy) ** Neonatal type and screen are valid up to 120 days from date of birth, as long as the TSIN band has remained attached. A confirmatory ABORH sample may be required in order to provide group-specific Red Blood Cells. Transfusion Medicine will advise. Refer to Confirmatory ABO. Additional sample may be requested in order to complete testing. Transfusion Medicine will advise. | ||||||||||||||||||||||||||||||||||||||||
Last Updated On: | Tuesday, June 7, 2022 |