Test Code HAVAB Hepatitis A Anitbody, IgM, LAB798
Methodology
Immunoassay
Performing Laboratory
St. Luke's Hospital Cedar Rapids
Specimen Requirements
Container/Tube:
Preferred: Gold-top serum gel tube or plain, red-top tube
Acceptable: Green-top (lithium heparin) tube or Lavender-top (EDTA) tube
Specimen Volume:170 uL of serum or plasma
Stability: Store samples at 2 to 8°C if not tested within 8 hours of collection. Store samples stoppered and upright at all times at 2 to 8°C up to 2 days. Freeze samples, devoid of red blood cells, at or below -20°C for up to 180 days. Thoroughly mix thawed samples and centrifuge at 10,000 g for 2 minutes before using. Collect the supernatant into a clean vial.
Collection Instructions:
Note:1. Heterophilic antibodies in human serum can react with reagent immunoglobulins, interfering with in vitro immunoassays. Patients routinely exposed to animals or to animal serum products can be prone to this interference and anomalous values may be observed. Additional information may be required for diagnosis.
2. In patients receiving therapy with high doses of biotin (i.e. >5 mg/day), no sample should be taken until at least 8 hours after the last biotin administration.
Reference Values
Nonreactive
Day(s) Test Set Up
Monday through Friday
Test Classification and CPT Coding
86709
Useful For
It is indicated as an aid in the diagnosis of acute or recent hepatitis A viral infection.
Analytic Time
1-2 days upon receipt.