Lab Dept:

Serology

Test Name:

HEPATITIS A ANTIBODY (ANTI-HAV, IgG and IgM COMBINED TOTAL)

General Information

Lab Order Codes:

HEA

Synonyms:

Anti-Hepatitis A Virus; HAAb, total; Hepatitis A, IgG and IgM

CPT Codes:

86708 – Hepatitis A antibody (HAAb); total

Test Includes:

Hepatitis A total antibody reported as negative, positive or equivocal. This assay measures both IgG and IgM antibody as a combined total reported as positive, negative or equivocal.

Logistics

Test Indications:

Demonstration of previous exposure and immunity to hepatitis A virus (HAV).

Lab Testing Sections:

Serology - Sendouts

Referred to:

Mayo Medical Laboratories (Test# 83330)

Phone Numbers:

Minneapolis:

Saint Paul:

612-813-6280

651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 - 2 days, test performed daily.

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Red top tube

Draw Volume:

3.0 mL blood

Processed Volume:

1.0 mL (Minimum: 0.5 mL) serum

Collection:

Routine venipuncture

Special Processing:

Lab staff: Centrifuge specimen within 24 hours of collection, remove seruminto a screw-capped round bottom plastic vial. Store and ship at frozen temperatures. Forward promptly.

Patient Preparation:

None

Sample Rejection:

Specimens other than serum, grossly hemolyzed or icteric, warm specimens, unlabeled or mislabeled specimens

Interpretive

Reference Range:

Negative (reported as negative, positive or equivocal)

Critical Values:

N/A

Limitations:

Passively acquired antibody (i.e., recent immune globulin administration, transfusion, etc.) may result in transient-positive test result. Regardless of exposure history, testing for anti-HAV total alone is insufficient to detect acute hepatitis A.

Methodology:

Chemiluminescence Immunoassay

Contraindications:

N/A

References:

Memorial Blood Center "Specimen Requirements and Storage"

Updates:

4/6/2004: Test moved from Memorial Blood Center of Minneapolis to Mayo Medical Laboratories.