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AVISE MTX AVISEMTX

Synonyms

Allscripts (AEHR) Order Name

AVISE MTX

Sunrise Clinical Manager (SCM) Order Name

AVISE MTX

EPIC Order Name

AVISE MTX

Clinical Info

Measurement of active methotrexate (MTX) metabolites, methotrexate polyglutamates (MTXPGs

Specimen Type

Blood

Specimen Volume

Container

Lavender Top Tube

Collection Instructions

Container/Tube: Lavender (EDTA) Top Tube
Specimen: 5 mL whole Blood( 3 mL min)

Transport Instructions

Refrigerated

Specimen Stability

5 Days Refrigerated

Methodology

Chromatography Quant multi

Days Performed

TAT:  4-6 Days

Performing Laboratories

Exagen

CPT

80204
Medicare 84999

PDM

235303

Result Interpretation

    MTX Level        Ref Range                 Interpretation                Interpretation
Therapeutic > 60 nmol/L Patient is metabolizing MTX effectively. Level is consistent with clinical efficacy
Intermediate 20-60 nmol/L Patient may need more exposure to MTX
Sub-therapeutic   <20 nmol/L Patient may not be metabolizing MTX effectively or patient may be non-compliant with therapy

 

Forms

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