Sketchy: Giardia

Question 1

What does a Giardia trophozoite look like on scanning EM?

Answer 1

it’s flagellated and has ventral sucking disks

Question 2

After ingestion of the cyst form, Giardia differentiates into the _____ form.

Answer 2

trophozoite

Question 3

Cue:

• monorail in the distance

Answer 3

tx is metronidazole

Question 4

Cue:

• poop in the river and brown-tinge to the water

Answer 4

fecal-oral transmission

Question 5

Why doesn’t Giardia cause bloody diarrhea?

Answer 5

bc it doesn’t invade the intestinal wall

Question 6

Cue:

• boater filling his water bottle from the river

Answer 6

transmitted thru poorly purified drinking water

Question 7

How is Giardia lamblia most often contracted?

Answer 7

drinking unpurified water from a river or stream contaminated with feces and therefore Giardia cysts

Question 8

Cue:

• bubbles in the water

Answer 8

transmitted by cysts

Question 9

Cue:

• man sitting on a yellow stool

Answer 9

causes steatorrhea (fatty diarrhea) from fat malabsorption and excessive mucus production

Question 10

Cue:

• shields on the side of the boat

Answer 10

• distinct trophozoite shape (flagellated with ventral sucking disks)
• attaches to intestinal wall but does not invade it

Question 11

What test do you order to diagnose Giardiasis?

Answer 11

stool O&P (ova and parasites)

Question 12

Cue:

• boaters holding their noses

Answer 12

foul-smelling diarrhea

Question 13

What vitamin deficiency might result from fat malabsorption?

Answer 13

A D E K

Question 14

Cue:

• boaters wearing backpacks

Answer 14

associated with campers

Question 15

Cue:

• name of the boat floating in the stool water is ELISA

Answer 15

can diagnose with ELISA stool antigen test

Question 16

Cue:

• man wearing an OP shirt pointing at shields floating in the water

Answer 16

trophozoites in the stool is diagnostic (order a stool O&P)