Myasthenia Gravis/Lambert-Eaton Myasthenic Syndrome Evaluation

Synonyms

  • LAB10959
  • Lambert-Eaton Myasthenic syndrome
  • LEABX
  • LEMS
  • LES
  • MuSK myasthenia
  • MYASTHENIA GRAVIS/LAMBERT - EATON EVAL.

Cerner Name

Myasthenia Gravis/Lambert-Eaton Eval

Clinical Info

Confirming the autoimmune basis of a defect in neuromuscular transmission (eg, myasthenia gravis [MG], Lambert-Eaton myasthenic syndrome [LEMS]) Distinguishing LEMS from autoimmune forms of MG Providing a quantitative autoantibody baseline for future comparisons in monitoring a patient's clinical course and response to immunomodulatory treatment
Mayo Test Code MGLE

Specimen Sources

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

Specimen Types

Blood

Specimen Volume

3 mL serum ( 2 mL min)

Container

Red Top Tube

Collection Instructions

Container/Tube: Red top tube or Gold Top Tube
Specimen: 3 mL serum ( 2 mL min)
Transport Temperature Refrigerated
Stability: 72 Hours Room Temperature
28 days Refrigerated (preferred) or Frozen

Transport Instructions

Specimen Stability

72 Hours Room Temperature
28 days Refrigerated (preferred) or Frozen

Methodology

ARBI, CCPQ, MUSK: Radioimmunoassay (RIA)ACMFS: Flow Cytometry

Days Performed

Performing Laboratories

Mayo Medical Laboratories

CPT

86041,86596

PDM

5910940

Results
Component Name Base Name Common Name External Name
P/Q-TYPE ANTIBODY PQTYPEANTI P Q TYPE ANTIBODY P/Q-Type Calcium Channel Ab
ACRM BINDING ANTIBODY ACRMBIND ACRMBINDING AB AChR Binding Ab
INTERPRETATION MG INTMG INTERP MG MG Lambert-Eaton Interpretation, S

Result Interpretation

MG Lambert-Eaton Interpretation, S Interpretation NA
ACh Receptor (Muscle) Binding Ab Radioimmunoassay (RIA) < or =0.02 nmol/L
P/Q-Type Calcium Channel Ab RIA < or =0.02 nmol/L

Forms
Immunology LAB10959 build edit