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Test Code Billings Clinic: 8118 Hepatitis Exposure Profile, Previous

Important Note

The performance of certain assays contained within this panel has not been established for neonatal patients or pregnant women.

 

In patients receiving therapy with high doses of biotin (> 5 mg/day), no sample should be taken until at least 8 hours after the last biotin administration, for certain assays contained within this panel.

Performing Laboratory

Billings Clinic Laboratory: Chemistry, Hematology

 

See “Viral Hepatitis Serologic Profiles—Billings Clinic Laboratory” under Resources

Useful For

  • Determining if an individual, who is asymptomatic, has been infected following exposure to an unknown type of hepatitis
  • Obtaining baseline serologic markers of an individual exposed to a source with an unknown type of hepatitis
  • Determining immunity to hepatitis A and B viral infections

 

Methodology

Chemiluminescent Microparticle Immunoassay (CMIA)

Specimen Requirements

Serum should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

  • Draw blood in a serum gel tube(s).
  • Spin down and send 4 mL of serum divided into 2 plastic vials each containing 2 mL of serum.
  • Send specimens frozen in plastic vials.
  • Draw date is required on request form for processing.

Storage/Stability

Specimen Type Temperature Time
Serum Refrigerated 2 days
  Frozen (preferred) 1 month

Reject Due To

  • Heat-inactivated specimen
  • Grossly hemolyzed specimen

Reference Values

See individual test listings.

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

86708 - Hepatitis A antibody; total

86704 - Hepatitis B core antibody; total

86706 - Hepatitis B surface antibody

86803 - Hepatitis C antibody

87340 - Hepatitis B surface antigen

86709 - Hepatitis A antibody; IgM (if appropriate)

 

LOINC Code Information

Reporting Name LOINC Code
HAV Ab, Total 13951-9
HBsAg 5196-1
HBcAb, total 13952-7
HCV Ab 13955-0
HBsAb, quant 5193-8
HAV Ab, IgM (If appropriate) 13950-1

 

Profile/Testing Information

Profile Information:
Hepatitis A Antibody, Total (Anti-HAV, Total) Hepatitis Bs Antigen (HBsAg)
Hepatitis Bc Antibody, Total (Anti-HBc, Total) Hepatitis C Antibody (Anti-HCV)
Hepatitis Bs Antibody (Anti-HBs), Quantitative
Reflex Tests (at an additional charge):
Hepatitis A Antibody, IgM (Anti-HAV, IgM) (if Hepatitis A Antibody, Total [Anti-HAV, Total] is positive)

 

Reflex Information:

If Billings Clinic: #8859 “Hepatitis A Antibody, Total (Anti-HAV, Total), Serum” is positive; Billings Clinic: #8858 “Hepatitis A Antibody, IgM (Anti-HAV, IgM), Serum” will be performed.