Factor V, Activity
0030075
 
Ordering Recommendation
Mnemonic
F5
Methodology
Clotting
Performed
Mon-Fri
Reported
1-4 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.  
Specimen Preparation
Transfer 2 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 1 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Serum. Non-frozen or hemolyzed specimens.  
Remarks
 
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%
Interpretive Data
Note
Do not order for factor V Leiden.
CPT Code(s)
85220
Components
Component Test Code*Component Chart Name
0030075Factor V, Activity
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Coagulation Factor V Activity Assay, Plasma
  • Common Pathway Proteins, Factor V
  • Labile Factor
  • Plasma Accelerator Globulin
  • Proaccelerin
  • Proconvertin