Ordering Recommendation

Evaluate for possible factor V deficiency. For factor V Leiden testing, order APC Resistance Profile with Reflex to Factor V Leiden (0030192) or Factor V Leiden (F5) R506Q Mutation (0097720).

Mnemonic
F5
Methodology

Electromagnetic Mechanical Clot Detection

Performed

Mon-Sat

Reported

1-3 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. EDTA plasma, clotted or hemolyzed specimens.

Remarks
Stability

Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 2 weeks

Reference Interval
Age Reference Interval Age Reference Interval
1-4 days 36-108% 7-9 years 69-132%
5-29 days 45-145% 10-11 years 66-136%
30-89 days 62-134% 12-13 years 66-135%
90-179 days 48-132% 14-15 years 61-129%
180-364 days 55-127% 16-17 years 65-131%
1-5 years 79-127% 18 years and older 62-140%
6 years 63-116%

Interpretive Data



Compliance Category

Standard

Note

Do not order for factor V Leiden.

Hotline History
N/A
CPT Codes

85220

Components
Component Test Code* Component Chart Name LOINC
0030075 Factor V, Activity 3193-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Coagulation Factor V Activity Assay, Plasma
  • Common Pathway Proteins, Factor V
  • F5
  • Labile Factor
  • Plasma Accelerator Globulin
  • Proaccelerin
  • Proconvertin
Factor V, Activity