Diagnostic Parasitology Laboratory - Laboratory User Handbook
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5. High risk speciments and safety

Specimens are regarded as HIGH RISK if taken from patients known, suspected, or at risk of having serious infectious disease.
Of note are blood-borne agents such as hepatitis, HIV, or various viral haemorrhagic fevers or other infectious diseases such as tuberculosis or typhoid.

In addition to the standard packaging instructions above, all high risk specimens must be labelled as HIGH RISK both on the container and the request form, with a standard yellow 'DANGER OF INFECTION' sticker, and placed in a Biohazard bag.

Material from a patient with a known or suspected category 4 infection must be fixed according to appropriate guidelines (available on request) prior to despatch.