Hepatitis A Serology

Test information: Hepatitis A IgM testing is used in the diagnosis of acute hepatitis infection. It is used as part of the Non-Invasive Liver Screen (NILS) for patients with amino alanine transferase (ALT) levels >300 IU/mL. Hepatitis A total antibody assay is primarily used to determine immunity to infection. It will detect antibodies arising from naturally acquired infection or from vaccination. However, testing is not recommended to confirm the effectiveness of vaccination.

Availability: Available locally Monday - Friday during routine hours: 08:45 - 17:15.

Turnaround Time: 3 Days

Specimen Type(s)

• Clotted blood;

Other Acceptable Specimen Type(s)

N/A

Specimen Container - Adult

• Gold Top SST BD;

Specimen Container - Paediatric

• Plain Top Sarstedt;

Analytes

• Hepatitis A IgM;
• Hepatitis A total antibody level;

Part of a test profile?

No

Volume (min) of sample to be sent to laboratory

5-10mL

Patient Preparation, Sample Handling and Transport

• Minimum-clotting time 30 minutes.
• Specimens should be transported to the laboratory as soon as possible.
• Outside of normal hours samples should be refrigerated (2 °C to 8 °C).

Maximum add on time

N/A

Units and Reference Ranges / Interpretation

Hepatitis A IgM antibody Results: Negative / Equivocal / Positive.
Hepatitis A total antibody Units: mIU/mL

Hepatitis A total antibody Interpretation:
Negative: < 15 mIU/mL
Borderline Positive: > 15 mIU/mL and < 20 mIU/mL
Positive: >20 mIU/mL

UKAS number

8869

UKAS accredited test?

Yes

Comments

N/A

If you have any queries about a test or results interpretation please contact us.