clinical parasitology - nematodes

Question 1

a class of helminths also known as roundworms

Answer 1

nematodes

Question 2

what do you call the parasite in which humans acquire the infection by ingestion of infected copepods or water fleas

Answer 2

dracunculus medinensis

Question 3

it causes guinea worm infection

Answer 3

dracunculus medinensis

Question 4

it causes trichinosis with symptoms include diarrhea, blurred vision, muscle edema (mostly striated muscles) and coughing

Answer 4

trichinella spiralis

Question 5

what do you call the parasite in which humans acquire the infection by eating contaminated undercooked pork

Answer 5

trichinella spiralis

Question 6

this parasite is found worldwide and pigs are its important reservoirs

Answer 6

trichinella spiralis

Question 7

T/F

Necator americanus and Ancylostoma duodenale are both hookworms

Answer 7

T

Question 8

T/F

Ancylostoma duodenale is the ‘new world hookworm’

Answer 8

F

Question 9

T/F

Necator americanus is the ‘old world hookworm’

Answer 9

F

Question 10

these parasites causes hookworm infections. depending on the infected body sites, symptoms can include coughing and headaches

Answer 10

Necator americanus and Ancylostoma duodenale

Question 11

T/F

Necator americanus contains a pair of cutting plates whereas Ancylostoma duodenale has teeth

Answer 11

T

Question 12

T/F

diagnosis of hookworm infection include:
1. identification of larvae in sputum
2. identification of ova from stool specimens

Answer 12

T

Question 13

it causes threadworm infection

Answer 13

strongyloides stercoralis

Question 14

what is the MOT of hookworms?

Answer 14

skin penetration

Question 15

what is the MOT of threadworms?

Answer 15

skin penetration

Question 16

it is also known as the giant intestinal round worm

Answer 16

Ascaris lumbricoides

Question 17

it causes ascariasis resulting in the intestinal tissue destruction and bowel destruction that can be fatal

Answer 17

Ascaris lumbricoides

Question 18

what is the MOT of the giant intestinal roundworm?

Answer 18

ingestion

Question 19

T/F

Ascaris lumbricoides can migrate to the lungs

Answer 19

T

Question 20

T/F

diagnosis of Ascaris lumbricoides involves examination of EGGS and ADULT FORMS in the stool specimen

Answer 20

T

Question 21

it is also known as the whipworm which causes colitis and dysentery in children and abdominal pain and BLOODY diarrhea in adults

Answer 21

trichuris trichiura

Question 22

T/F

diagnosis of trichuris trichiura is through detection of EGGS in stool samples

Answer 22

T

Question 23

also known as pinworm

Answer 23

enterobius vermicularis

Question 24

it causes enterobiasis that are usually self-limiting and characterized by itching and inflammation of the anus

Answer 24

enterobius vermicularis

Question 25

T/F

tape preparation is the preferred method of specimen collection in a patient suspected with enterobiasis

Answer 25

T

Question 26

Nematodes are placed into two groups. These are ___ and ___ .

Answer 26

intestinal nematodes and intestinal-tissue nematodes

Question 27

what are intestinal nematodes?

Answer 27

1. enterobius vermicularis
2. trichuris trichiura
3. ascaris lumbricoides
4. strongyloides stercoralis
5. necator americanus
6. ancylostoma duodenale

Question 28

what are intestinal-tissue nematodes?

Answer 28

1. trichinella spiralis
2. dracunculus medinensis

Question 29

what are the parasites labeled as the unholy trinity (give the parasitic names) ?

Answer 29

1. trichuris trichiura
2. ascaris lumbricoides
3. necator americanus and ancylostoma duodenale

Question 30

what are the parasites labeled as the unholy trinity (give the common names) ?

Answer 30

1. giant intestinal roundworm
2. whipworm
3. hookworm