Rivaroxaban

Alphabetical Test listing

Rivaroxaban-994

Test name:

Rivaroxaban

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Xarelto

Useful for:

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

Specimen type:

Sodium citrate (Na cit) plasma

Collection container:

Lt blue Sodium citrate (NaCit)

Volume:

1.0 mL

Minimum volume:

0.5 mL
(Note: This volume does not allow for repeat testing.)

Collection instructions:

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

Processing instructions:

Spin within two (2) hours of sample collection
Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as Na citrate plasma

Transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Alternate specimen type:

EDTA plasma
Heparin plasma

Alternate collection container:

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel

Alternate collection instructions:

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

Alternate processing instructions:

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

Transport and stability:

Ambient (preferred) - 7 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Performing lab:

LabCorp Burlington (117050): R-NX

Days set up:

TAT:

5 - 7 days

Method:

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

Reference ranges:

An interpretive report will be provided

CPT codes:

80299

Subject to medical necessity (Y/N):

Date created:

05/20/2019

Revised date:

08/17/2023

Review date:

08/17/2023