Yale New Haven Hospital

Department of Laboratory Medicine
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Myasthenia gravis evaluation, pediatric

Lab Section: 

Sendout Reference

 

Lab Location: 

Sendout

Reference Lab: 

Mayo

 

Test ID: 

LAB3274

 

Synonyms: 

Acetylcholine Receptor (Muscle AChR) Antibodies

Methodology: 

Radioimmunoassay (RIA)

Schedule: 

Monday-Friday

Reported: 

7 days

Specimen Requirements: 

Collection: 4.0 mL Blood in a Gold Top Tube.
Pediatric volume: 2 mL.
Transport: Refrigerated.
Unacceptable conditions: Gross hemolysis; Gross Lipemia; Gross Icterus
Stability: Ambient 72 hours; Refrigerated 28 days; Frozen 28 days

 

Notes: 

Clinical Indications: Recommended for initial investigation of patients presenting at less than age 20 with a defect of neuromuscular transmission Confirming that a recently acquired neurological disorder has an autoimmune basis Distinguishing acquired myasthenia gravis from congenital myasthenic syndromes (persistently seronegative) Providing a quantitative baseline for future comparisons in monitoring clinical course and response to immunomodulatory treatment

Profile includes: ACh Receptor (Muscle) Binding Ab and ACh Receptor (Muscle) Modulating Ab

Reference Interval: 

See patient report or consult reference laboratory website.

http://www.mayomedicallaboratories.com/test-catalog/Specimen/37424

CPT Code(s): 

83519x2

Last Changed: 

9/7/2017 10:10:00 PM

Last Reviewed: 

9/7/2017 10:10:09 PM