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Test Code
SGPG
Test Name
MAG-SGPG Ab (IgM), EIA
CPT Codes
83520
Expected Turnaround Time
4 - 7 days
Clinical Utility

MAG, Antibody IgM is useful in detecting antibodies associated with autoimmune peripheral neuropathy.
Specimen and Container Info

Specimen Type: Serum

Preferred Collection Container: Red Top, Plain

Alternate Collection Container: Gold Top, Serum Separator

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a red top, plain tube via venipuncture.
  2. Avoid hemolysis.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Patient Preparation

Overnight fasting is preferred.
Transport Instructions

Transport to the laboratory refrigerated.
Stability Requirements

Room Temperature

48 hours

Refrigerated

14 days

Frozen

30 days
Causes for Rejection
  • Received room temperature
Methodology
Varies By Test
Reference Intervals

See patient report.
Alternate Names
  • Myelin Associated Glycoprotein (MAG)-SGPG Antibody (IgM)
  • Myelin Associated Glycoprotein-Sulfated Glucuronic Paragloboside Ab (IgM)
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, 2 times per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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