Mod 6

Front 1

1. What are the 4 medically important tissue nematodes?
2. Common name &disease

Back 1

1. WOLD
Wuchereria (Filariasis)
Onchocerca (river blindness)
Loa (Loiasis)
Dracunculus (Guinea worm)

Front 2

1. What is the mode of transmission for wuchereria (filariasis)?
2. Dx?

Back 2

1. Mosquito bite
2. Blood smear

Front 3

1. What is the mode of transmission for Onchocerca
2. Dx?

Back 3

1. Blackfly bite
2. skin bx

Front 4

1. What is the mode of transmission for Loa?
2. Dx?

Back 4

1. Deer fly bite
2. Blood smear

Front 5

1. What is the mode of transmission for Dracuculus?
2. Dx?

Back 5

1. Ingestion of copepods in water
2. Clinical

Front 6

1. What insect stage infects humans for tissue nematodes?
2. What stage of the parasite is ingested by the insect?
3. Which does not have a insect vector?

Back 6

1. Larvae
2. Microfilariae
3. Dracunculus

Front 7

1. What does wuchereria bancrofti cause? aka?
2. Dx?
3. How do you get it?
4. Where in the body does it mature?
5. rx

Back 7

1. Lymphatic filariasis, elephantiasis
2. Blood smear with microfilariae
3. Mosquito during blood meal - control mosquito to control disease
4. Lymphatic vessels
5. diethylcarbamazine against microfilariae, no treatment for adult worms

Front 8

1. What does onchocerca volvulus cause?
2. Clinical findings for it?
3. What is the vector for it?
4. Dx?
5. prevent?

Back 8

1. River blindness (onchocerciasis)
2. Microfilariae migrate thru subq tissue, concentrate in eyes leading to blindness, thick scratchy skin (lizard skin)
3. Black fly
4. biopsy of affected skin (does not travel in blood)
5. control the blackfly (ivermectin kill microfilariae & suramin kills adult worms)

Front 9

1. What is the primary host for river blindness?
2. What does loa loa cause
3. Clinical findings?
4. Vector?

Back 9

1. Humans (sexual form exist in humans)
2. Loasis
3. Sligh edema is it
4. Deer fly

Front 10

1. Dx for loa?
2. Rx?
3. Prevention?

Back 10

1. Microfilariae in a blood smear
2. Diethylcarbamazine
3. control the fly

Front 11

1. What causes dracunculiasis?
2. Pathogenesis?
3. How do you get rid of the worm?
4. How do you get this?

Back 11

1. Dracunculus medinensis
2. Inflamed papule that burns and itches
3. Slowly roll the worm out on a stick (long white, sticks out of skin)
4. Drink unfiltered water containing cephalopods

Front 12

1. Dx dracunculiasis?
2. Rx?
3. Prevent?

Back 12

1. No need
2. Roll the worm out of the body with a stick. (metronidazole makes worm easier to extract)
3. Filter or boil water

Front 13

1. What are the 2 most important lost nematodes?
2. common name/disease
3. Home of the adult worm

Back 13

1. Toxocara larvae (visceral larva migrans) - dog ascariasis
2. Ancyclostoma (cutaneous larva migrans) dog hookworm

Front 14

1. How do you get toxocariasis?
2. type of nematode?
3. Major cause of visceral larva migrans?

Back 14

1. ingestion of eggs, that hatch and migrate
2. Lost
3. Toxocara canis

Front 15

1. What does toxocariasis (visceral larva migrans) present with?
2. Dx
3. Rx
4. Prevent

Back 15

1. Blindness, fever, hepatomegaly, eosinophilia
2. Visualize larvae in tissue
3. Albendazole or mebendazole
4. Dogs should be dewormed, children should not eat soil

Front 16

1. How does Ascariasis present/
2. Rx?

Back 16

1. Extreme prurition
2. Oral or topical thiabendazole