What is the likely diagnosis if a 42-year-old in the following scenario?

A 42-year old pt with AIDS presents to your office with chronic, intractable, debilitating diarrhea. He says it began not long after returning from a camping trip. He admits to drinking water from a stream without using a filter or boiling it. You perform a GSA (Giardia Stool Antigen) test which comes back negative.

Asked by Cblanch, Last updated: Apr 06, 2024

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3 Answers

Sharif

Answered Oct 20, 2017

Cryptosporidium parvum, This is because this parasite has a high affinity in unboiled water to survive.

John Adney

Answered Oct 20, 2017

Cryptosporidium parvum, This is because this parasite has a high affinity in unboiled water to survive.

Cblanch

Answered Sep 17, 2017

Cryptosporidium Parvum

Cryptosporidium in an immunocompetent host causes self-limiting diarrhea, which means it will clear up on its own. However, this pt is immunocompromised, which allows for the most severe symptoms.