Myasthenia Gravis Panel 3

Test Code

MGP

Quest Code

10211

Alias/See Also

MGP

CPT Codes
86041, 86042, 86043, 86255

Includes

Acetylcholine Receptor Binding Antibody
Acetylcholine Receptor Blocking Antibody
Acetylcholine Receptor Modulating Antibody
Striated Muscle Antibody with Reflex to Titer

If Striated Muscle Antibody Screen is positive, then Striated Muscle Antibody Titer will be performed at an additional charge (CPT code(s): 86256).

Preferred Specimen

2 mL serum

Minimum Volume

0.8 mL

Instructions

Serum is the only acceptable specimen for this test.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 4 days
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly lipemic • Grossly icteric

Methodology
See individual tests

Setup Schedule

Set up: Mon, Thurs; Report available: 3-7 days

Reference Range

See Laboratory Report

Clinical Significance

Myasthenia Gravis is a neurological disorder characterized by a decrease in acetylcholine receptors. Patients exhibit skeletal muscle weakness and fatigability. Approximately 80% of patients with Myasthenia Gravis, excluding ocular involvement only, have detectable acetylcholine receptor antibody. There is a strong correlation between the presence of striated muscle antibody and the presence of thymoma.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

Last Updated: March 18, 2021

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.