Hepatitis A – Genotyping-Subtyping

Specimen Collection and Handling

Specimen Requirements

Test Requested Required Requisition(s) Specimen Type Minimum Volume Collection Kit

Hepatitis A Genotyping

Blood

5.0 ml

Blood, clotted - vacutainer tubes (SST)

Hepatitis A Genotyping

Plasma

1.0 ml

EDTA tubes

Submission and Collection Notes

1

Instructions for using SST tubes are found in the document titled: LAB-SD-008, Blood Collection using Serum Separator Tubes

2

Referring laboratories must indicate on the requisition if the specimen has already been tested for HAV IgM and that the result is HAV IgM Positive.

Limitations

Haemolysed, icteric, lipemic or microbially contaminated sera or plasma are not recommended for testing.

Preparation Prior to Transport

Label the specimen container with the patient’s full name, date of collection and one other unique identifier such as the patient’s date of birth or Health Card Number. Failure to provide this information may result in rejection or testing delay.

Special Instructions

 Place specimen in biohazard bag and seal. Ship to PHL frozen on dry ice or ice packs.

Requisitions and Kit Ordering

Test Frequency and Turnaround Time (TAT)

Hepatitis A – genotyping specimens are shipped to NML weekly.

Turnaround time is up to 21 days.

Reporting

Results are reported to the ordering physician or health care provider as indicated on the requisition. Results are also reported to local MOH where the patient is residing.

Test Methods

Hepatitis A – Genotyping Tests are referred to the Public Health Agency of Canada – National Microbiology Lab (NML), Molecular, Immunodiagnostics, Bloodborne Pathogens and Hepatitis Section:

Phone: (204) 789-6062
Fax: (204) 789-2082
Email: NMLBloodbornePathogens@phac-aspc.gc.ca  

Hepatitis A Genotype testing is performed by conventional RT- Polymerase Chain Reaction (PCR) followed by sequencing.

contact lab

Contact Laboratory Customer Service

Laboratory Services

customerservicecentre@oahpp.ca

Updated 17 April 2019