Parasitology

Question 1

Giardia lamblia (Giardiasis). What type of diarrhea?

Answer 1

Foul-smelling, fatty diarrhea

Question 2

Giardia lamblia (Giardiasis). What type of people are at risk for developing this disease?

Answer 2

Campers and hikers

Question 3

Giardia lamblia (Giardiasis). What is seen in the stool?

Answer 3

Trophozoites or cysts

Question 4

Giardia lamblia (Giardiasis). What is the shape of the nuclei?

Answer 4

Bi-lobed nuclei

Question 5

Giardia lamblia (Giardiasis). What medication is used for treatment?

Answer 5

Metronidazole

Question 6

Entamoeba histolytica (Amebiasis). What type of diarrhea?

Answer 6

Blood diarrhea

Question 7

Entamoeba histolytica (Amebiasis). Pain in what quadrant of the abdomen?

Answer 7

RUQ

Question 8

Entamoeba histolytica (Amebiasis). What is the shape of the ulcer?

Answer 8

Flask-shaped

Question 9

Entamoeba histolytica (Amebiasis). Transmission?

Answer 9

Cysts in the water

Question 10

Entamoeba histolytica (Amebiasis). What is present in the cytoplasm of the trophozoites?

Answer 10

RBCs. Red blood cells are “eaten” by Entamoeba histolytic. This results in anemia.

Question 11

Entamoeba histolytica (Amebiasis). What medication is used for treatment?

Answer 11

Metronidazole

Question 12

Cryptosporidum. Severe watery diarrhea in what type of patient?

Answer 12

AIDS

Question 13

Cryptosporidum. Oocytes stain with what?

Answer 13

Acid-fast stain

Question 14

Cryptosporidum. What medication is used for treatment?

Answer 14

Nitazoxaninde

Question 15

Toxoplasma gondii. Brain abscess in which type of patients?

Answer 15

HIV patients

Question 16

Toxoplasma gondii. What specific type of lesions?

Answer 16

Ring-enhancing brain lesions

Question 17

Toxoplasma gondii. What type of calcifications?

Answer 17

Intracranial

Question 18

Toxoplasma gondii. Transmission from feces of what animal?

Answer 18

Cat Feces

Question 19

Toxoplasma gondii. Lesions are what density?

Answer 19

Hypo dense

Question 20

Naegleria fowleri. What disease?

Answer 20

Rapidly fatal meningoencephalitis

Question 21

Naegleria fowleri. What type of water?

Answer 21

Freshwater

Question 22

Naegleria fowleri. What will be present within the spinal fluid?

Answer 22

Amoebas

Question 23

Naegleria fowleri. There is a sudden change in which two sensations?

Answer 23

Taste and Smell

Question 24

Naegleria fowleri. Caused by what type of devices?

Answer 24

Nasal irrigation

Question 25

Trypanosoma brucei. What disease?

Answer 25

African sleeping sickness

Question 26

Trypanosoma brucei. What type of fever?

Answer 26

Recurring fever

Question 27

Trypanosoma brucei. Causes what symptom?

Answer 27

Somnolence

Question 28

Trypanosoma brucei. Recurring fever is caused by what properly of the protozoa?

Answer 28

Antigenic variation

Question 29

Trypanosoma brucei. What fly transmits this protozoa?

Answer 29

Tsetse fly

Question 30

Plasmodium. What disease? Transmission?

Answer 30

Malaria. Mosquito.

Question 31

Plasmodium. What type of ring is seen in the RBC?

Answer 31

Trophozoite ring

Question 32

Plasmodium. Species vivax/ovale, falciparum, and malariae. What is the most severe, causes irregular fever patterns, and results in cerebral malaria due to causing RBC to occlude?

Answer 32

Falciparum

Question 33

Plasmodium. Primaquine is used in order to target what type of hepatic schizonts?

Answer 33

Latent hepatic schizonts

Question 34

Plasmodium. What medication is initially used to treat malaria?

Answer 34

Chloroquine

Question 35

Plasmodium. What medication is used if there is resistant to Chloroquine?

Answer 35

Mefloquine

Question 36

Plasmodium. What type of synthesis does Chloroquine inhibit?

Answer 36

Inhibits nucleic acid synthesis by blocking Plasmodium heme polymerase

Question 37

Plasmodium. What type of symptoms is associated with Mefloquine use?

Answer 37

Neuropsychiatric symptoms

Question 38

Plasmodium. Primaquine is added to a malaria treatment regimen when the disease is caused by this species.

Answer 38

Vivax/Ovale

Question 39

Babesia (Babesiosis). Hemolytic anemia and fever disease. Associated with co-infection which what organism?

Answer 39

Lyme Disease

Question 40

Babesia (Babesiosis). What type of cross is seen on a blood smear?

Answer 40

Maltese cross

Question 41

Trypanosoma cruzi. Causes what type of disease?

Answer 41

Chagas Disease

Question 42

Trypanosoma cruzi. What type of cardiomyopathy?

Answer 42

Dilated cardiomyopathy

Question 43

Trypanosoma cruzi. What colon problem?

Answer 43

Megacolon

Question 44

Trypanosoma cruzi What esophagus problem?

Answer 44

Megaesophagus

Question 45

Trypanosoma cruzi. Location?

Answer 45

South America

Question 46

Trypanosoma cruzi. Transmission by what bug?

Answer 46

Reduviid bug (kissing bug)

Question 47

Trypanosoma cruzi. Diagnosis by what?

Answer 47

Blood smear

Question 48

Trypanosoma cruzi. Treatment by which two drugs?

Answer 48

Benznidazole or nifurtimox

Question 49

Leishmania donovani. Causes what type of leishmaniasis?

Answer 49

Visceral leishmaniasis

Question 50

Leishmania donovani. What type of fevers? Enlargement of what organ? Blood cells and platelet levels?

Answer 50

Spiking fevers, hepatosplenomegaly, and panctopenia (RBC, WBC, and platelets).

Question 51

Leishmania donovani. Transmitted by what type of fly?

Answer 51

Sandfly

Question 52

Leishmania donovani. What type of cells contain amastigotes?

Answer 52

Macrophages

Question 53

Leishmania donovani. Treatment by what drug?

Answer 53

Sodium stibogluconate

Question 54

Trichomonas vaginalis. What type of discharge?

Answer 54

Foul-Smelling, greenish discharge, with itching and burning

Question 55

Trichomonas vaginalis. What type of transmission?

Answer 55

Sexual

Question 56

Trichomonas vaginalis. What motile organisms are seen on a wet mount?

Answer 56

Trophozoites

Question 57

Trichomonas vaginalis. What type of cervix?

Answer 57

Strawberry cervix

Question 58

Trichomonas vaginalis. Medication for treatment?

Answer 58

Metronidazole