New Search

Laboratory Test Directory

Factor XIII, Qualitative


Name Method Department Units
Qualitative Factor XIII Solubility in 5M Urea
Core Lab, Coagulation

Specimen Requirements

Platelet poor plasma

Container Type Container Size Specimen Volume

Blue plastic tube (Citrate)

2.7 mL 2.7 mL

Frozen - 2 week(s)

Specimen Preparation

  • Mix by gentle inversion immediately after collection
  • Fill tubes to appropriate mark.
  • Centrifuge, remove plasma/serum and freeze
  • Plasma must be platelet free

Reasons for Rejection

  • Over or under filled tube
  • Clotted specimen
  • Not received within specified time frame
  • Gross hemolysis
  • Wrong collection tube
  • Capillary specimen
  • Specimen collected in glass tube


Patient samples will be batch-tested. If results are desired within 24-48 hours after collection, contact the Coagulation Lab at 614-722-5364. If a next-day result is desired, fresh whole blood is required. Transport the whole blood specimen so that it is received within four (4) hours of collection, and between 7:00 a.m. – 11:00 a.m., Monday through Thursday. For next-day result, contact the Coagulation Lab prior to sample submission. If submitting frozen plasma, centrifuge citrate tubes according to Lab policy, remove platelet-poor plasma, pool the plasma, aliquot and freeze. Send a minimum of two (2) aliquots of frozen plasma.

CPT Code

  • 85291