Test CPT Codes
COVID-19 IgM Antibody Testing
Test Disease / Components
Chemiluminescent Immunoassay (CLIA)
Serum Separator Tube preferred
Absolute minimum volume: 1mL
About This Test
Positive results to antibodies against SARS-CoV-2 are generally indicative of an individual’s current or prior infection with the COVID-19 virus, however, the duration of these antibodies remaining in circulation has not yet been established.
These test results should always be considered in the context of a patient’s clinical history, physical examination, epidemiologic exposures and vaccination history before making the final diagnosis.
IgM isotype antibodies develop within 5 to 7 days and indicates recent infection.
Storage, Stability & Shipping
Label specimen with patient's name and date of birth
Complete requisition form with necessary information
Ambient, 48 hours; Refrigerated, 2 weeks; Frozen, 1 year (avoid repeated freeze/thaw cycles)
Specimen viability decreases during transit
Ship ambient within 48 hours; Ship refrigerated or frozen samples on ice packs
Turnaround Time (TAT)