Lecture III: protazoans

Question 1

Entamoeba histolytica (amebiasis) symptoms

Answer 1

Bloody diarrhea, can invade tissues. Other presentation: Liver abscess.

Question 2

lumenal; intestine leads in invasion of tissues

Answer 2

Entamoeba histolytica

Question 3

transmission of entomoeba histolytica

Answer 3

fecal/oral

anal sex

Question 4

Entameoba histolytica lifecyle **

Answer 4

Cysts protect trophozoites from acid–> go to sm intestine
attach to colon and divide
cysts form in large intestine and shed in feces
tphropozoites pepentrate mucosa. Can become invasive.

Question 5

Entameoba histolytica leads to

Answer 5

diarheaa or dysentery when it invades colonic epithelium

Question 6

entomeoba histolytica dysentery leads to

Answer 6

severe bloody diahrea

Question 7

Pt with entomeoba histolytica with dysentery can lead to

Answer 7

liver abcess and death

Question 8

what can we do to lower likelyhood of entomeoba histolytica?

Answer 8

good sanitation, condoms and personal hygeine

Question 9

Giradia lamblia transmission

Answer 9

fecal/oral from wild animals

Question 10

epidemics in nursery and ‘ski resorts’ and backpackers beware!

Answer 10

giardia lamblia

Question 11

Giardia lamblia results in:

Answer 11

explosive diarhea, non-bloddy and accute onset

Question 12

This parasite can complicate pregnancy

Answer 12

giardia lamblia

Question 13

Giardia lamblia can be prevented by;

Answer 13

boiling water, filter, hygiene

Question 14

Apicomplexans are obligate ______ paracells

Answer 14

intracellular

Question 15

This is the form of Cyptosporidim in humans?

Answer 15

Cyptosporidium hominis

Question 16

Cryptosporidiosis parvum is in

Answer 16

cows

Question 17

Cyptrosporidiosis hominis is common in patients with

Answer 17

AIDS

Question 18

water pruification system broke…what outbreak could we get?
Think farm runoff

Answer 18

Cryptosporisiosis hominis

Question 19

3 or more watery bowels
then profuse watery diarrhea
shedding of oocyst high during acute phase

Answer 19

Cyrptosporidiosis

Question 20

Toxoplasma gondii is located in

Answer 20

tissue and blood

Question 21

transplancental: Congenital infection caused by this disease

Answer 21

toxoplasmosis gondii

Question 22

this is known as being transmitted by cats but more often by undercooked pokr

Answer 22

toxoplasmosis gondii

Question 23

If you were previously exposed to toxoplasmosis is your baby in danger of contractin?

Answer 23

not if it was from an old infection
if seropositive for toxo-specific IgG, test again in 3 weeks, if posiive for IgM then chronic for 6 months, don’t get pregant

Question 24

What will show up on a CAT of baby that got infected with toxoplama gondii?

Answer 24

enhancing ring lesions