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Test Code HAV M Hepatitis A Antibody IgM

Aliases

Anti-HAV IgM, HAV IgM, HAV Igm Qualitative

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

1 mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

  • Gold Top SST
  • Red Top

Plasma:

  • Light Geen Top (Lithium heparin)
  • Purple or Pink Top(K2/K3 EDTA)

 

Reference or Target Ranges

Nonreactive

Reportable Units

Reactive/Nonreactive

Critical Value

Not defined for this assay

Reasons for Rejection

 

Hemolysis Threshold 1000 mg/dL
Icterus Threshold 50 mg/dL
Lipemia Threshold 2000 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 

Ambient 2 hours
Refrigerated (4°C to 8°C) 7 days
Frozen(-40°C to 0°C) 3 months

Performance Information

 

Days and Time Performed 24/7
Expected Turn Around Time Routine: 4 hours
Stat Availability No
Performing Bench WCH Chemistry
Methodology/Method Description Roche Cobas – Electrochemiluminescence Immunoassay (ECLIA)

Additional Information/Important Notes

Result Clarification
Nonreactive: IgM antibodies to Hepatitis A Virus were not detected. This does not exclude the possibility of exposure to, or infection with HAV. Levels of IgM antibodies to HAV may be below the cut-off in early infection
Borderline: IgM antibodies to Hepatitis A may or may not be present. Patients exhibiting borderline test results should be closely monitored by redrawing and retesting at approximately two week intervals.
Reactive: IgM antibodies to Hepatitis A Virus detected. This is presumptive evidence of HAV infection. A Reactive IgM antibody to HAV does not rule out other hepatitis infections.

CPT Codes

86709