Fungi and parasites

Question 1

Fever spikes caused by P. malariae occur every how often

Answer 1

Every 72 hours

Question 2

Fever spikes caused by P. vivax and P. ovale occur every how often

Answer 2

Every 48 hours

Question 3

Most common complication of P. vivax infection

Answer 3

Splenic rupture

Question 4

Plasmodium species that causes cerebral malaria

Answer 4

Falciparum

Question 5

DOC for cutaneous mycosis

Answer 5

• Azoles

* Terbinafine

Question 6

Where are echinococcus eggs found

Answer 6

Dog’s feces

Question 7

Taenia solium stage that, when consumed, can lead to neurocysticercosis

Answer 7

Eggs

Question 8

Nematode that can lead to rectal prolapse

Answer 8

Trichuris trichiuria

Question 9

Nematode whose larvae encysts in the muscles

Answer 9

Trichinella spiralis

Question 10

Infectious agent of river blindness

Answer 10

Onchocerca volvulus

Question 11

Mechanism of action of terbinafine

Answer 11

Inhibition of squalene epoxidase

Question 12

Fungi that can cause erythema nodosum

Answer 12

Coccidioides immitis

Question 13

Etiologic agent of tinea nigra

Answer 13

Hortaea wernickii

Question 14

Drugs given to patients that asymptomatically pass Entamoeba histolytica

Answer 14

• Paramomycin

* Iodoquinol

Question 15

DOC for immunocompetent hosts with Cryptosporidium diarrhea

Answer 15

Nitazoxanide

Question 16

Pathogen that has acid-fast elliptical oocysts

Answer 16

Isospora

Question 17

DOC for Isospora infection

Answer 17

• TMP/SMX

* Pyrimethamine/sulfadiazine

Question 18

Parasite with gram +, acid-acid fast spores

Answer 18

Isospora

Question 19

Parasite that has acid-fast spherical oocysts with UV fluorescence

Answer 19

Cyclospora

Question 20

How do you differentiate between Cyclospora and Cryptosporidium

Answer 20

Cryptosporidium is not sensitive to TMP/SMX, while Cyclospora is

Question 21

When is transplacental transmission of Toxoplasma gondii the highest

Answer 21

3rd trimester

Question 22

Drug that substitutes pyrimethamine in pregnant women with Toxoplasma gondii due to its teratogenic effects

Answer 22

Spiramycin

Question 23

Rhabditiform larvae are seen with infection due to which pathogen

Answer 23

Strongyloides stercoralis

Question 24

Etiologic agents of cutaneous larva migrans

Answer 24

The hookworms

Question 25

Etiologic agent of visceral larva migrans

Answer 25

Toxocara canis

Question 26

Microfilaria that is found in blood during daytime

Answer 26

Loa loa

Question 27

Microfilaria that is found in blood during nighttime

Answer 27

Wuchereria bancrofti

Question 28

Bacteria with which W. bancrofti has a symbiotic relationship

Answer 28

Wolbachia

Question 29

Schistosoma with a lateral spine

Answer 29

S. mansoni

Question 30

Schistosoma with a terminal spine

Answer 30

S. haematobium

Question 31

Mechanism of action of azoles

Answer 31

Inhibit sterol synthesis

Question 32

Mechanism of action of caspofungin

Answer 32

Inhibit cell wall synthesis by inhibiting synthesis of beta glucan

Question 33

Antifungal that inhibits squalene epoxidase (thereby inhibiting lanosterol synthesis)

Answer 33

Terbinafine