S740

Test CODE NAME

S740

Von Willebrand Factor, Antigen

Methodology: Microlatex Particle-Mediated Immunoassay
Performed: Mon-Sat
Reported: 3-5 days
Specimen Required: Collect: Lt. Blue (sodium citrate) - 1.5 ml plasma.
Specimen Preparation: Transfer  platelet-poor plasma to a Standard Transport Tube.
Storage/Transport Temperature: CRITICAL FROZEN.
                                               Separate specimens must be submitted when multiple tests are ordered. Unacceptable Conditions:Serum. Non-frozen or hemolyzed specimens.
Stability:  Refrigerated: Unacceptable; Frozen : 1 month
CPT Code(s): 85246