ARUP's Laboratory Test Directory

Factor V, Activity : 0030075

Mnemonic: F5

Methodology: Clotting
Performed: Mon-Fri
Reported: 1-4 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. (Min: 3 mL)

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

Pediatric Collection/Transport:  1 mL platelet-poor plasma, frozen.

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

Unacceptable Conditions:  Serum.  Nonfrozen or hemolyzed specimens.

Stability:  Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks
Reference Interval:
1-4 days: 36-108%
5-29 days: 45-145%
30-89 days: 62-134%
90-179 days: 48-132%
180-364 days: 55-127%
1-5 years: 79-127%
6 years:  63-116%
7-9 years: 69-132%
10-11 years: 66-136%
12-13 years: 66-135%
14-15 years: 61-129%
16-17 years: 65-131%
18 years and older: 62-140%
Note: Do not order for factor V Leiden.
CPT Code(s): 85220
 
 

 

 

 
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