GI Protozoa

Question 1

List 6 protozoa that cause diarrhea

Answer 1

Giardia Lamblia                             
Cryptosporidium spp.
Entamoeba Histolytica
Microspora
Cystoisospora Belli
Cyclospora Cayetansensis

Question 2

3 major protozoal diarrhea pathogens

Answer 2

Giardia Lamblia
Cryptosporidium spp.
Entamoeba Histolytica

Question 3

Risk factors (2) for Giardia; mode of transmission

Answer 3

contaminated water, daycares; fecal oral

Question 4

Risk factors (2) for cryptosporidium; mode of transmission

Answer 4

immunocompromised, water supply; fecal-oral

Question 5

Risk factors (3) for entamoeba histolytica; mode of transmission

Answer 5

immigrants, MSM, steroids

Fecal-oral

Question 6

leading cause of chronic diarrhea in AIDS

Answer 6

Cryptosporidium

Question 7

self limited diarrhea (2 wks) in immunocompentent, fever is rare

Answer 7

cryptosporidium

Question 8

severe diarrhea with cholangitis, lung, other mets

Answer 8

immunocompromised cryptosporidium

Question 9

can be asymptomatic carriage

Answer 9

Entamoeba histolytica

Question 10

can be diarrhea/dysentary with liver abscess; name 2 other sxs and reason

Answer 10

entamoeba histolytica; abd pain (colitis) and RUQ pain (liver abscess)

Question 11

ocular infxn in addition to diarrhea

Answer 11

microsporidia

Question 12

name two more pathogens that cause diarrhea

Answer 12

cystoisospora belli

cyclospora cayetanensis

Question 13

foul smelling diarrhea with cramping/bloating. Are there assoc sxs?

Answer 13

giardia lamblia

not inflammatory so fever is rare.