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Factor XI, Plasma

Test ID: FAC11

Test

Aliases/Synonyms

Coagulation Factor XI

Method

Clotting Assay

Report Includes

Factor XI

Specimens

Plasma (Citrate)

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

27-Oct-2023

Specimen

Specimens

Plasma (Citrate)

Collection Containers

Light Blue Tube (Citrate)

Sample Volume

2 mL

Collection & Handling

Handling Information

Prepare platelet poor plasma and freeze immediately. Store and send frozen.

Additional Information

Submit separate specimen for each test ordered.

Stability

Ambient 4 hours
Frozen 14 days (-20°C)

Additional Stability Information

Stable up to six months at -70°C. If the specimen thaws, it is unsuitable for analysis.

Rejection Criteria

Specimen Not frozen or clotted
Hemolysis Present

Test Version

27-Oct-2023

Performance / Interpretation

Method

Clotting Assay

Turnaround Time

4 days

Results

Name Units Reference Range Conversion Factor
Coagulation Factor XI U/mL
  • < 3 days: 0.07 - 0.79
  • Adult: 0.50 - 1.50
% x 0.0100

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

27-Oct-2023

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
FAC11 29242Factor XI Assay U/mL

Test Version

27-Oct-2023