Factor V, R2 Mutation
2001549
Ordering Recommendation
Order to determine thrombotic risk in individuals known to be factor V Leiden heterozygotes.
Mnemonic
F5 R2
Methodology
Polymerase Chain Reaction/Restriction Enzyme Digestion/Gel Electrophoresis
Performed
Varies
Reported
3-10 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Lavender (EDTA). Also acceptable: Yellow (ACD solution A or B)  
Specimen Preparation
Transfer 5 mL whole blood to an ARUP Standard Transport Tube. (Min: 0.5mL)  
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated.  
Unacceptable Conditions
  
Remarks
  
Stability
Ambient: 1 week; Refrigerated: 1 week; Frozen: Unacceptable  
Reference Interval
   
Interpretive Data
 
Note
 
CPT Code(s)
81400
Components
Component Test Code*Component Chart NameLOINC
2001550Factor V R2 Mutation 
* 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
  • A4070G Mutation (Factor V, R2 Mutation)
  • Factor V HR2 (Factor V, R2 Mutation)
  • H1299R Mutation (Factor V, R2 Mutation)
  • Haplotype R2 (Factor V, R2 Mutation)
  • HR2 (Factor V, R2 Mutation)

Performed at Esoterix Coagulation