Parasitic Infections

Question 1

giardiases

Answer 1

protozoal infection of the upper small intestine

Question 2

giardiasis special risk

Answer 2

travelers to endemic areas, nasty water, men on men, immunocompromised

Question 3

where are giardiasis outbreaks common?

Answer 3

households, children’s daycards, residential facilities

Question 4

giardiasis PP

Answer 4

feces- flagellated trophozoite and as a cyst

cyst- infectious by oral route

trophozoites are destroyed by gastric acidity

Question 5

how are giardiasis cysts transmitted?

Answer 5

fecal contamination of water or food, by P2P or anal oral sexual contact

Question 6

giardiasis CF

Answer 6

acute, watery diarrhea

chronic diarrhea- abd cramps, bloating, poot, N, malaise, anorexia, weight loss, greasy and malordous

Question 7

giardiasis dx

Answer 7

look at 3 stools; greasy/frothy and foul smelling, no blood, pus, or mucus

Question 8

tx of giardiasis

Answer 8

metronidazole, tinidazole, nitazoanide

Question 9

amebiasis

Answer 9

rare in US, second leading cuase of death in developing world

*immigrants, travelers

Question 10

amebiasis PP

Answer 10

dz follows penetration of the intestinal wall–. D, severe involvement: dysentery, extra intestinal dz most commonly liver abscesses

Question 11

how are amebiasis transmitted

Answer 11

ingestion of cysts from fecally contaminated food or water, facilitaed by P2P spread, flies, and other arthropods

Question 12

CF of amebiasis

Answer 12

asx to severe dysentery

BLOODY D

Question 13

amebiasis lab

Answer 13

stool exam, abdominal CT or MRI (liver abscesses), antigent detection assays, elevated LFTs

Question 14

tx of amebiasis

Answer 14

Metronidazole

Question 15

Malaria

Answer 15

plasmodium, 4 species and each has a different geographic distribution

falciparum is the worrisome one

Question 16

malaria epidemiology

Answer 16

40% of worlds population at risk