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Acetylcholine Receptor Binding Antibody

Acetylcholine Receptor Binding Antibody

Alternate Test Name

Acetylcholine Receptor (Muscle AchR) Binding Antibody, Serum

Epic Mnemonic
Sunquest Mnemonic

LAB836
ACTY

Category

Sendouts

Methodology

Radioimmunoassay (RIA)

Test Performance Schedule

Monday through Sunday

Result Availability

3 – 6 days

Specimen Required

Container

Gold top (SST) tube

Volume

Pref. Vol.: 1.5 mL serum
Min. Vol.: 0.5 mL serum

Collection Instructions

• Routine venipuncture
• Immediately after collection, gently invert tube 5-10 times
• Clot 30 minutes
• Centrifuge within 2 hours of collection
• Refrigerate

Transportation Instructions

Refrigerated

Stability

• Room temperature: 72 hours
• Refrigerated (preferred): 28 days
• Frozen: 28 days

Causes for Rejection

• Gross hemolysis
• Gross lipemia
• Gross icterus

Remarks

Patient Preparation:
This test should not be requested in patients who have recently received radioisotopes, therapeutically or diagnostically, because of potential assay interference. The specific waiting period before specimen collection will depend on the isotope administered, the dose given and the clearance rate in the individual patient. Specimens will be screened for radioactivity prior to analysis. Radioactive specimens received in the laboratory will be held 1 week and assayed if sufficiently decayed, or canceled if radioactivity remains.

CPT Codes

83519

Effective/Revised

10/25/2019

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