ARUP's Laboratory Test Directory

von Willebrand Factor Antigen : 0030285

Mnemonic: VWF/AG

Methodology: Microlatex Particle-Mediated Immunoassay
Performed: Mon-Sat
Reported: 1-3 days
Specimen Required: Collect: One 5 mL lt. blue (sodium citrate). Refer to the Hemostasis/Thrombosis Specimens section in the front of this User's Guide for specimen collection instructions.

Storage/Transport Temperature: 2 mL platelet-poor plasma, frozen. (Min: 1 mL) Submit specimen in an ARUP Standard Transport Tube.

Remarks: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions: Serum. Nonfrozen or hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 8 hours; Frozen: 2 weeks
Reference Interval:
0-6 years: 52-214%
7-9 years: 62-180%
10-11 years: 63-189%
12-13 years: 60-189%
14-15 years: 57-199%
16-17 years: 50-205%
18 years and older: 52-214%
CPT Code(s): 85246
Cross References: VWF Ag
 
 

 

 

 
All ARUP Sites:        www.aruplab.com     ·     www.arupconsult.com     ·     www.arup.utah.edu     ·     www.childx.org     ·     www.utahblood.org