Topic 7-12

Question 1

(3) phases of infection in Trichinella spiralis

Answer 1

Enteric phase

Invasion phase

Convalescent phase

Question 2

Localized reaction caused by the cercarial penetration on the skin

Answer 2

Swimmer’s itch

Question 3

1st intermediate host of Echinostoma ilocanum

Answer 3

Gyraulus convexiusculus and Hippeutis umbilicalis

Question 4

In Circumoval Precipitin test
Kato-Katz (+)
COPT (+)

Interpret the result

Answer 4

Current infection

Question 5

Papaniculaou smear uses this system of reporting

Answer 5

Bethesda system

Question 7

What is the principle of Circumoval Precipitin test?

Answer 7

Antigen-antibody reaction

Question 8

In Circumoval Precipitin test
Kato-Katz (-)
COPT (+)

Interpret the result

Answer 8

Past infection or cross reaction

Question 9

What is the purpose of Harada Mori Filter Paper Strip Culture?

Answer 9

To detect light infection of hookworm Strongyloidiasis and infections with Trichostrongylus spp. as well as to facilitate species identification

Question 10

(3) Advantages of Circumoval Precipitin test

Answer 10

Method of choice

Highly sensitive and specific

Easy to perform

Question 11

(3) Disadvantages of Circumoval Precipitin test

Answer 11

Technically demanding

Not routinely used for field testing

Cannot detect active vs past infection

Question 12

Positive reaction of Circumoval Precipitin test

Answer 12

Bleb formation or Segmented Precipitates

Question 13

Treatment for Strongyloides stercoralis

Answer 13

Ivermectin

Question 14

(2) characteristics used in speciating in microfilariae

Answer 14

Presence or absence of a sheath

Distribution of nuclei within the tail

Question 15

Name the parasite: Elephantiasis below the knee

Answer 15

Brugia malayi

Question 16

Name this parasite: Elephantiasis above the knee

Answer 16

Wuchereria bancrofti

Question 17

Common name of Mansonella ozzardi

Answer 17

New World Filaria

Question 18

What disease caused Anisakis complex

Answer 18

Herring disease

Question 19

Longest nematodes of man (up to 1 meter)

Answer 19

Dracunculus medinensis

Question 20

Confirmatory test for Trichinella spiralis

Answer 20

Bentonite Flocculation Tests

Question 21

What is the final procedure in the O&P examination?

Answer 21

Permanent stained smears

Question 22

Brine Flotation Method AKA ____

Answer 22

Saturated Salt Solution Technique

Question 23

(2) types of concentration techniques

Answer 23

Flotation method

Sedimentation method

Question 24

Advantage of Brine Flotation Method

Answer 24

Low cost and simple

Question 25

Main reagent in Zinc Sulfate Flotation Method

Answer 25

33% Zinc Sulfate Solution

Question 26

Sheather’s Sugar Flotation Technique uses what?

Answer 26

Sugar boiled in phenol

Question 27

Most widely used concentration technique

Answer 27

Formalin ether/ethyl acetate concentration technique

Question 28

Infective stage of Angiostrongylus cantonensis

Answer 28

Filariform larva

Question 29

Trichinella spiralis causes the ______ in eosinophils

Answer 29

greatest increase

Question 30

This disease is a great imitator who can mimic other diseases

Answer 30

Trichinosis/Trichiniasis/Trichinellosis

Question 31

Who discovered Capillaria philippinensis?

Answer 31

Dr. Nella P. Salazar

Question 32

Smallest human fluke

Answer 32

Metagonimus yokogawai

Question 33

Mode of transmission of Heterophyid flukes

Answer 33

Ingestion of metacercariae encysted in fish

Question 34

Worm invades the bile duct through the ampula of Vater and cause biliary ascariasis which causes severe abdominal pain due to the movement of worm inside the biliary tract

Answer 34

Biliary ascariasis

Question 35

Worms lodge in the appendix

Answer 35

Acute pancreatitis

Question 36

2nd most common helmenthic infection reported in humans

Answer 36

Hookworms

Question 37

Scientific name for Dog Hookworm

Answer 37

Ancylostoma caninum

Question 38

More sensitive, culture method of choice of Strongyloides stercoralis (Garcia)

Answer 38

Agar Plate Culture

Question 39

Name all the common name of Enterobius vermicularis

Answer 39

Pinworm Seatworm Social worm Society worm

Question 40

Gold standard for diagnosing Enterobius vermicularis

Answer 40

Perianal swab (Scotch Tape Swab or Cellulose Tape Swab)

Question 41

Most common Helminth to infect man worldwide

Answer 41

Enterobius vermicularis

Question 42

Most common Helminth to infect man in the Philippines

Answer 42

Ascaris lumbricoides

Question 43

Mode of transmission of Trichuris trichiura

Answer 43

Ingestion of embryonate egg (fecal-oral transmission)

Question 44

Worms in the peritoneal cavity

Answer 44

Peritonitis

Question 46

Most common specimen used for leprosy diagnosis

Answer 46

Skin biopsies