Protozoa

Question 1

Produces cytopathic effect of E. Histolytica

Answer 1

Cysteine proteases

Question 2

Mediates adherence of entamoeba

Answer 2

Lectin

Question 3

Flask shaped colon ulcers

Dysentery without fever

Answer 3

Amebic colitis

Question 4

Most common extraintestinal form of entamoeba

Anchovy sauce aspirate

Answer 4

Amebic liver abscess

Question 5

Ttt for cyst carrier state of entamoeba

Answer 5

Diloxanide furoate

Question 6

Luminal agents for entamoeba

Answer 6

Diloxanide furoate
Iodoquinol
Paromomycin

Question 7

Falling leaf motility

Answer 7

Giardia lamblia

Question 8

Variant surface protein

Answer 8

Giardia lamblia

Question 9

Villous flattening, disruption of cytoskeleton Ultimately leads to enterocyte apoptosis

Answer 9

Giardia

Question 10

Excessive flatus
Foul smelling diarrhea
Chronic: steatorrhea

Answer 10

Giardia

Question 11

Acid fast parasite autoinfection in IS pts, self limited nonbloody diarrhea

Answer 11

Cryptosporidium parvum

Question 12

Ttt for crytosporidium

Answer 12

Nitazoxanide

Question 13

Infective and diagnostic stage of cryptosporidium

Answer 13

Thick walled oocysts

Question 14

Pear shaped flagellated trophozoites

Answer 14

Trichimonas vaginalis

Question 15

Greenish vaginal discharge

Answer 15

Trichomoniasis

Question 16

Strawberry cervix
Ectocervicitis
Punctate hemorrhage

Answer 16

Trichomoniasis

Question 17

Ttt for trichomoniasis

Answer 17

Metronidazole 2 g

Question 18

Transmitted thru anopheles

Answer 18

Plasmodium

Question 19

Infective stage of plasmodium

Answer 19

Sporozoites

Question 20

Diagnostic stage of plasmodium

Answer 20

Trophozoites (ring forms)

Question 21

Provides immunity to malaria

Answer 21

RBC defects

Question 22

Banana shaped gametocyte

Answer 22

P. falciparum

Question 23

Large round gametocyte

Answer 23

P. vivax

Question 24

Recurrence of symptoms after temp abatement 2-4 weeks

Answer 24

Recrudescence

Falciparum, malariae

Question 25

Return of disease after cessation, reactivation of hypnozoites (1-6 months)

Answer 25

Relapse | Vivax, ovale

Question 26

Benign quartan

Answer 26

P. malariae

Question 27

Malignant tertian

Answer 27

P. falciparum

Question 28

Highest yield in blood samples for plasmodium

Answer 28

During fever or 2-3 hrs after peak

Question 29

Punctate granulations in RBC

Answer 29

Schuffner - ovale, vivax

Question 30

Coarse granulations in RBC

Answer 30

Maurer - falciparum

Question 31

Fine granulations in RBC

Answer 31

Ziemann - malariae

Question 32

Malarial or durck granulomas

Answer 32

Cerebral malaria

Question 33

Intravascular hemolysis Massive hemoglobinuria ARF

Answer 33

Blackwater fever | P. falciparum

Question 34

Septic shock due to plasmodium

Answer 34

Algid malaria

Question 35

Endemic areas for plasmodium

Answer 35

Palawan Kalinga apayao Ifugao Agusan del sur

Question 36

Areas with Chloroquine resistant malaria

Answer 36

Palawan Davao del norte Compostela valley

Question 37

Tissue schizonticide (liver) and gametocide (blood)

Answer 37

Primaquine

Question 38

Blood schizonticide

Answer 38

Chloroquine | Quinine

Question 39

Sporonticide in mosquito

Answer 39

Proguanil | Pyrimethamine

Question 40

Ttt for Chloroquine resistant malariae

Answer 40

Mefloquine + doxycycline

Question 41

Eradication of hypnozoites

Answer 41

Primaquine

Question 42

Severe or pregnant

Answer 42

Chloroquine or quinine

Question 43

Vivax and ovale ttt

Answer 43

Chloroquine + primaquine

Question 44

Prophylaxis for plasmodium

Answer 44

Chloroquine

Question 45

Prophylactic for areas with chloroquine resistance

Answer 45

Malarone | Mefloquine

Question 46

Prophylaxis for MDR resistant falciparum

Answer 46

Doxycycline

Question 47

Definitive host: domestic cat

Answer 47

Toxoplasma gondii

Question 48

Preferred dx test for toxoplasmosis

Answer 48

IgM antibody

Question 49

Intracranial calcifications

Answer 49

Congenital toxoplasmosis

Question 50

Ttt for toxoplasmosis

Answer 50

Sulfadiazine + pyrimethamine

Question 51

Transmitted by reduviid bug (triatoma)

Answer 51

Trypanosoma cruzi

Question 52

Most often and severely affected tissue by t. Cruzi

Answer 52

Cardiac muscle

Question 53

Periorbital edema in acute chagas dse

Answer 53

Romana's sign

Question 54

Ttt of chagas dse

Answer 54

Nifurtimox

Question 55

Dx stage of t. Cruzi and t. Bruceii

Answer 55

Trypomastigotes in blood

Question 56

Transmission by tsetse fly (glossina) bite

Answer 56

Trypanosoma brucei

Question 57

Remarkable antigenic variation | Cyclical fever spike every 2 weeks

Answer 57

Trypanosoma bruceii

Question 58

Enlargement of post cervical LN

Answer 58

Winterbottom's sign | T. Bruceii

Question 59

Hyperesthesia in t. Bruceii

Answer 59

Kerandel's sign

Question 60

Plasma cells with cytoplasmic immunoglobulin globules

Answer 60

Mott cells in t. Bruceii encephalitis

Question 61

Ttt for t. Bruceii

Answer 61

Suramin | Melarsoprol

Question 62

Transmission by bivalve molluscs and fish from red tide

Answer 62

Dinoflagellates

Question 63

Granulomatous amebic encephalitis

Answer 63

Acanthamoeba castellani

Question 64

Primary amebic meningoencephalitis

Answer 64

Naegleria fowleri

Question 65

Only ciliated protozoan to cause human dse - dysentery | Round based wide neck intestinal ulcers

Answer 65

Balantidium coli

Question 66

Transmitted by ixodes tick

Answer 66

Babesia microti

Question 67

Transmitted by sandfly | Infective promastigotes

Answer 67

Leishmania spp

Question 68

Ttt for leishmaniasis

Answer 68

Na stibogluconate (antimony)

Question 69

``` Shellfish poisoning Paralytic Neurotoxic Diarrhetic Amnesic ```

Answer 69

``` Shellfish poisoning Paralytic: saxitoxin Neurotoxic: brevetoxin Diarrhetic: okadaic Amnesic: domoic ```

Question 70

Dx stage entamoeba

Answer 70

Trophozoites | Mature & immature cysts