Warfarin, Serum or Plasma
0090805
Ordering Recommendation
 
Mnemonic
WARF SP
Methodology
High Performance Liquid Chromatography
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
Plain red, gray (sodium fluoride/potassium oxalate), green (sodium heparin), lavender (EDTA), or pink (K2 EDTA).  
Specimen Preparation
Separate serum or plasma from cells within two hours of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.7 mL)  
Storage/Transport Temperature
Refrigerated. Also acceptable: Room temperature or frozen.  
Unacceptable Conditions
Separator tubes.  
Remarks
  
Stability
Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks  
Reference Interval
By report  
Interpretive Data
 
Note
 
CPT Code(s)
80299
Components
Component Test Code*Component Chart Name
0090803Warfarin, Serum or Plasma
* 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
  • Anticoagulants, Oral
  • Coumadin
  • Jantoven
  • Panwarfarin
  • Sodium Warfarin

Performed at National Medical Services (NMS)