Inpatient and Outpatient Orderable

AVISE MTX Build info

Synonyms

  • AVISE MTX
  • AVISEMTX
  • AVISE methotrexate (MTX) metabolites
  • AVISE methotrexate polyglutamates (MTXPGs)
  • LAB11090

Procedure Name

AVISE MTX

Procedure Master Number

LAB11090

Procedure ID

114576

Clinical Info

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

Specimen Sources

 Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

 Blood

Container

Lavender Top Tube

Collection Instructions

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

Specimen Volume

Transport Instructions

Refrigerated

Specimen Stability

5 Days Refrigerated

Methodology

Chromatography Quant multi

Days Performed

TAT:  4-6 Days

Performing Laboratory

Exagen

CPT

80204
Medicare 84999

PDM

 235303

Only Orderable at Locations:

 Orderable Everywhere

Results
Component Name Base Name Common Name External Name
METHOTREXATE POLYGLUTAMATES CONCENTRATIO METHPOLYGLUT METHOTREXATE POLYGLUTAMATES CONCENTRATIO Methotrexate Polyglutamates Concentration

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
edit