Pathogen marker Guide

Giardia lamblia

PARASITE

Description

Giardia lamblia is a waterborne parasite that can cause gastroenteritis. Clinical presentation ranges from asymptomatic carriage to acute or chronic gastrointestinal infections.

If detected — guidance

Medical treatment is recommended for symptomatic patients.

If not detected

Indicates the pathogen has been tested and not detected in the sample.

If indeterminate

Discrepant test results cannot be resolved as positive or negative. If clinically indicated, repeat sample collection and further testing are recommended.

What are pathogen markers?

Pathogens are bacteria, viruses or protists that can cause infection and disease. Pathogens are tested using RT-PCR (real-time polymerase chain reaction) — a highly sensitive method for detecting specific regions of DNA that typically indicate the presence of the pathogen, species or genus reported. Results for each of the 18 Pathogen Markers are displayed on the marker card, along with insights for patient management.

Result interpretation

If not detected

The pathogen has been tested and not detected in the sample.

If indeterminate

Discrepant test results cannot be resolved as positive or negative. If clinically indicated, repeat sample collection and further testing is recommended.

If detected — guidance

The pathogen has been detected. Always interpret in the context of the patient's clinical presentation.