4.2.1 Flukes (Trematodes, Blood fluke)

Question 1

Also known as Oriental blood fluke

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 1

a

Question 2

ALL blood flukes has an IS metacercaria

T or F

Answer 2

F

Cercaria

Question 3

MOT for Schistosoma japonicum

Answer 3

Skin penetration in water

Question 4

Schistosoma japonicum is endemic in?

Answer 4

Leyte

Question 5

More frequently found in the superior mesenteric veins draining the small intestine

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 5

a

Question 6

More frequently found in the anterior mesenteric veins draining the small intestine

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 6

c

Question 7

What blood fluke causes:
- Schistomiasis japonica
- Swimmer’s itch

Answer 7

S. japonicum

Question 8

Definitive host includes:

Dog
Pigs
Cats
Carabais
Cows
Rodents
Monkeys
Man

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 8

a

Question 9

Dx for S. japonicum:

Sensitive for heavy infection

a. MIFC
b. Katokatz

Answer 9

a

Question 10

Dx for S. japonicum:

egg counting

a. MIFC
b. Katokatz

Answer 10

b

Question 11

Which among the Sero Dx for S. japonicum is the MOST specific

a. Intradermal test
b. COPT
c. ELISA

Answer 11

b and c

Question 12

Praziquantel

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 12

a

Question 13

Also known as Vesical blood fluke

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 13

b

Question 14

S. haematobium causes deposits the larvae in the blood vessel causing infection

T or F

Answer 14

F

Not larvae, egg

Question 15

MOT for S. haematobium?

Answer 15

Skin penetration in water

Question 16

Causes urinary schistosomiasis

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 16

b

Question 17

Causes Katayama fever (Menigoencephalitis)

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 17

a

(Posible lahat since may CNS involvement)

Question 18

Dx: Examination of urine

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 18

b and c

Question 19

S. haematobium

Urinary schistosomiasis has a prepatent period of?

Answer 19

10-12 weeks

Question 20

Urinary schistosomiasis has a painful haematuria

T or F

Answer 20

F

Painless

Question 21

In urinary schistosomiasis, due to inflammation of the bladder and burning micturition, this may lead to bladder ______

Answer 21

carcinoma

Question 22

Lung and CNS involvement

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 22

b and c

Question 23

Granulomatous lesion around the ectopic eggs in the spinal cord

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 23

b and c

Question 24

Also known as Manson intestinal blood fluke

a. Schistosoma japonicum
b. Schistosoma haematobium
c. Schistosoma mansoni

Answer 24

c

Question 24

Tissue proliferation and repair a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 24

b and c

Question 25

MOT of S. mansoni

Answer 25

Skin penetration in water

Question 26

Adult: unlike the flukes, adult schistosomes have the sexes ________, with the female residing in a _______________ within the male. Male worms are robust, tuberculate and measure ______mm in length. Females are longer (______ mm in length) and slender. Adult S. mansoni reside in the venous plexuses of the ______________ and in the portal system of the ______of their host

Answer 26

separate, gynecophoral canal 6-12 , 7-17 colon and lower ileum, liver

Question 27

Causes intestinal schistosomiasis a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 27

c

Question 28

Endoscopy a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 28

c

Question 29

Cystoscopy a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 29

b

Question 30

Small lateral a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 30

a

Question 31

Large lateral a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 31

c

Question 32

Ova/eggs: hatch at slightly alkaline H2O, knob like lateral spine near the polar ends a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 32

a

Question 33

Ova are large (110-170 um long by 40-70 um wide) and bear a conspicuous terminal spine. Eggs contain a mature miracidium when shed in urine a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 33

b

Question 34

Ova: eggs are large (114 to 180 um long by 45-70 um wide) and have a characteristic shape, with a prominent lateral spine near the posterior end. The anterior end is tapered and slightly curved. When the eggs are excreted in stool, they contain a mature miracidium a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 34

c

Question 35

1st IH * Snail: Oncomelania hupensis quadrasi (infected by miracidium form) a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 35

a

Question 36

1st IH * Snail: Bulinus spp. a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 36

b

Question 37

1st IH * Snail: Biomphalaria spp. a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 37

c

Question 38

Prepatent period for Intestinal schistosomiasis?

Answer 38

5-7 weeks

Question 39

Which among the following causes Dysentery and Hepatosplenomegaly a. Schistosoma japonicum b. Schistosoma haematobium c. Schistosoma mansoni

Answer 39

c