Rivaroxaban

Alphabetical Test listing

Rivaroxaban-994

  
Rivaroxaban
  
994
  
LAB994
  
MSO
  
Xarelto
  

Measurement of drug level in order to monitor therapeutic level and/or diagnose under-dosage or potential toxicity

  
Sodium citrate (Na cit) plasma
  
  
1.0 mL
  
0.5 mL
  
  • Do not over or under fill tube as the ratio of anticoagulant to whole blood is critical
  • Coag – tube fill guidelines

  • Immediatley following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting
  
  1. Spin
  2. Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as Na citrate plasma, within two (2) hours of sample collection
  
EDTA plasma
Heparin plasma
  

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel

 

  

Immediatley following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

  
  1. Spin
  2. Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as the appropriate plasma type, within two (2) hours of sample collection
  

Ambient (preferred) - 7 days

Refrigerated - 14 days

Frozen - 14 days

  
LabCorp Burlington (117050): R-NX
  
Tu
  
5 - 7 days
  

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

  

An interpretive report will be provided

  
80375
  
No
  
05/20/2019
  
03/11/2022
  
06/02/2020