Von Willebrand Antigen (Factor VIII Antigen )

CERNER / EPIC MNEMONIC: VWF:AG
POE DESCRIPTION:

VON WILLEBRAND FACTOR ANTIGEN; VWF:AG; FVIII ANTG

CPT CODE: 85246-90
CDM NUMBER:

3181083

TURNAROUND TIME: 5-7 working days
SPECIAL INSTRUCTIONS:

This test cannot be added onto an existing sample.

CONTAINER TYPE:

Blue citrate tube

COLLECTION: See Section - Specimen Collection Guidelines - Coagulation Specimens.
SPECIMEN REQUIREMENTS:

4.5 mL blood (1.0 mL citrated plasma)

REJECTION CRITERIA:

Specimen hemolyzed; Hct >55%; underfilled tube (QNS)

MINIMUM VOLUME:

Use pediatric tube: 1.6 mL blood (0.5 mL citrated plasma); pediatric tubes must be fully drawn.

REFERENCE RANGE:

See Specialty Labs   - Search Test Code 1907

TEST SYNONYM(S):Antigenic Factor VIII; Factor VIII Related Antigen; VWF Antigen