MUSK AUTOANTIBODY

General Information

HLAB/HOL Code: MUSKA
UPHSM LIS Test #: 026953
Schedule:
Testing Time: 3-10 Days
Testing Lab: Mayo

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 1.5 (1.0) mL
Temperature: Refrigerated
Tube Type: Serum
Collection Info:
Preferred: Red top
Acceptable: Serum gel

Specimen Acceptability

REJECT DUE TO:
Gross hemolysis: Reject
Gross lipemia: Reject
Gross icterus: Reject

Methods

Radioimmunoassay (RIA)

Clinical Utilities

Diagnosis of autoimmune muscle-specific kinase (MuSK) myasthenia gravis.
Second-order test to aid in the diagnosis of autoimmune myasthenia gravis when first-line serologic tests are negative.
Establishing a quantitative baseline value for MuSK antibodies that allows comparison with future levels if weakness is worsening.

CPT Codes

83519

* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Reference Range

See Report