Trematodes/Flukes

Question 0

Species under liver and intestinal flukes

Answer 0

Fasciola hepatica
Fasciola gigantica
Fasciola buski

Question 1

Species that are under liver flukes

Answer 1

Clonorchis sinensis
Opistorchis viverrini
Opistorchis felineus

Question 2

Other miscellaneous nematodes…..

Answer 2

Paragonimus westermani

Eurytrema pancreaticum

Question 3

Give the blood flukes/schistosoma species

Answer 3

S.mansoni
S.japonicum
S.haematobium

Question 4

Class of helminth that are pathogenic to human, are leaf-like and flat in structure and are hermaphroditic

Answer 4

Trematodes/flukes

*schistosomes are not flat, leaf-like and hermaphroditic

Question 5

Give the stages in a snail

Answer 5

Miracidium
Sporocyst
Rediae
Cercariae

Question 6

First larva stage that emerges from the egg in fresh water

Answer 6

Miracidium

Question 7

Emerges from the miracidium as a sac-like structure containing the larva

Answer 7

Sporocyst

Question 8

Intermediate larval stage occurring in the sporocyst

Answer 8

Rediae

Question 9

Final stage of development occurring in the snail and are motile by means of a tail

Answer 9

Cercariae

Question 10

Infective stage for all schistosomes

Answer 10

Cercariae

*schistosomule - cercariae minus the tail

Question 11

Encysted form occurring in the second intermediate host

Answer 11

Metacercariae

Question 12

Infective stage for all flukes except schistosomes

Answer 12

Metacercariae

Question 13

Flukes that are found in cosmopolitan

Answer 13

Clonorchis sinensis

Fasciola hepatica

Question 14

Flukes found in the Orient, Africa and Hawaiian islands

Answer 14

Opistorchis viverrini

Fasciola gigantica

Question 15

Flukes found in Far East, India and Subcontinent

Answer 15

Opistorchis felineus

Fasciola buski

Question 16

Flukes found in Far East

Answer 16

Paragonimus westermanni
S.japonicum
Opistorchis felineus
Fasciola buski

Question 17

Flukes found in the Orient

Answer 17

Eurytrema pancreaticum
Opistorchis viverrini
Fasciola hepatica

Question 18

Trasmitted through ingestion of uncooked crabs and cray fishes

Answer 18

Paragonimus westermanni

Question 19

Oriental Lung Fluke

Answer 19

Paragonimus westermanni

Question 20

Sheep Liver Fluke

Answer 20

Fasciola hepatica

Question 21

Oriental/Chinese Liver Fluke

Answer 21

Clonorchis sinensis

Question 22

Giant Liver Fluke

Answer 22

Fasciola gigantica

Question 23

Giant Intestinal Fluke

Answer 23

Fasciola buski

Question 24

Southeast Asian Liver Fluke

Answer 24

Opistorchis viverrini

Question 25

Cat Liver Fluke

Answer 25

Opistorchis felineus

Question 26

First intermediate host for Flukes

Answer 26

Snail *except for the Miscellaneous trematodes (crabs, cray fishes and grasshopper) and schistosomes

Question 27

How many % is the serologic test sensitivity for S.mansoni?

Answer 27

99% S.japonicum -> 95% S.haematobium -> 55%

Question 28

Its ova is lightbulb shape, operculated with 1 knob at the opposite end of operculum

Answer 28

Clonorchis sinensis Opistorchis -> operculated with 1 knob at the opposite end of operculum

Question 29

Its ova is flattened on operculated end "Chinese Vase egg"

Answer 29

Paragonimus westermanni

Question 30

Describe the sputum (macroscopic) of the infected by the Paragonimus westermanni

Answer 30

Reddish brown flecks resembling iron filings

Question 31

Location of adult in hosts

Answer 31

Bile ducts

Question 32

What is the gold standard for diagnosis of Eurytrema pancreaticum

Answer 32

Stool examination

Question 33

Best specimen for diagnosing Paragonimus westermanni

Answer 33

Stool | Sputum

Question 34

Presence of cephalic cone

Answer 34

Fasciola hepatica | Fasciola gigantica

Question 35

Protein wasting enteropathy

Answer 35

Fasciola buski

Question 36

Characterized by a prominent lateral spine (ova)

Answer 36

S.mansoni S.japonicum -> rudimentary lateral spine S.haematobium -> terminal spine

Question 37

Enumerate the site of predilection of schistosoma's

Answer 37

S.mansoni -> inferior mesenteric vessels S.japonicum -> superior mesenteric vessels S.haematobium -> venous plexus of the bladder

Question 38

Oriental blood fluke

Answer 38

S.japonicum

Question 39

Disease cause by S.mansoni

Answer 39

Intestinal bilharziasis/Schistosomal dysentery

Question 40

Disease cause by S.japonicum

Answer 40

Katayama's disease | Jacksonian episodes

Question 41

Disease caused by S.haematobium

Answer 41

Urinary bilharziasis/Schistosomal hematuria

Question 42

Endemic in Leyte and Bicol

Answer 42

S.japonicum

Question 43

Prevalent in Egypt (Middle East)

Answer 43

S.haematobium

Question 44

Type of inflammation caused by S.japonicum

Answer 44

Pipestem fibrosis

Question 45

Drug or choice for the treatment of flukes

Answer 45

Praziquantel

Question 46

Egg hatching occurs immediately after immersion to water. What is the disease?

Answer 46

Schistomiasis aka Bilharziasis

Question 47

The first intermediate host that causes Schistomiasis

Answer 47

Snail (mollusk) -> oncemelania quadrasi

Question 48

Schistomiasis is associated w/ ____________

Answer 48

Swimmer's itch

Question 49

Smallest form of S.haematobium

Answer 49

S.entercalatum