Evaluate the cause of an isolated prolonged partial thromboplastin time (PTT) in a patient who is not currently bleeding.
Electromagnetic Mechanical Clot Detection
Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.
Transfer 2 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 1 mL)
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Serum. EDTA plasma, clotted or hemolyzed specimens.
Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 2 weeks
No compliance statements are in use for this test.
|Component Test Code*||Component Chart Name||LOINC|
|0030115||Factor XII, Activity||3232-6|
- Coagulation Factor XII Activity Assay, Plasma
- Factor X11a
- Hageman factor
- Hageman Factor (Contact Factor)
- Intrinsic Factor Proteins
- Intrinsic Factors
- Surface Factor