WARFARIN

Synonyms: Coumadin; Sodium Warfarin; Jantoven
Computer Code: (RWARF)
Specimen Collection: 4 mL blood (red, lavender or sodium heparin green top tube). No gel. No gel-barrier tubes.
Minimum Volume: 2 mL
Handling Instructions for Offsite Areas: Serum: Allow to clot, centrifuge, remove serum, refrigerate. Min 0.6 mL serum. Plasma: centrifuge, remove plasma, refrigerate. Min 0.6 mL plasma.
Reference Values: See reference laboratory report.
Lab Code: Send Out
Requisition: SPEC C
Test Frequency:
Routine TAT: 9 days
Stat TAT: N/A
CPT Code(s): 80375
LCD or NCD:
Methodology Used:
See Addendum XVII