Parasites

Question 1

entamoeba histolytica

Answer 1

intestinal protozoa

• bloody diarrhea
• to liver or lungs - forms abscess
• active disease - trophozoites with intracellular RBCs

Question 2

active entamoeba histolytica disease

Answer 2

trophozoites with intracellular RBCs

Question 3

kite shaped trophozoite

Answer 3

giardia

Question 4

drink mountain stream, fatty stool, greasy, frothy, bad smell, cramps

Answer 4

giardia lambia

Question 5

cryptosporidium

Answer 5

intestinal protozoa

non-bloody diarrhea, life threatening

Question 6

giardia lambia

Answer 6

intestinal protozoa

fatty, greasy, smelly poo

Question 7

diarrhea in immunocompromised

Answer 7

isospora

cyclospora

Question 8

eat raspberries get bad diarrhea

Answer 8

isospora

cyclospora

Question 9

isospora

Answer 9

intestinal protozoa

diarrhea in immunocompromised

Question 10

cyclospora

Answer 10

intestinal protozoa

diarrhea in immunocompromised

Question 11

pruritis, burning, vaginal secretions with highly motile parasite on microscope

Answer 11

trichomonas vaginalis

Question 12

trichomonas vaginalis

Answer 12

pruritis, burning, secretions

asymptomatic in males

Question 13

swimming and 1 week later fever, HA, stiff neck, nausea vomiting, death

Answer 13

naegleria fowleri

Question 14

CSF - high neutrophil, low glucose, high protein, but no gram stain bacteria

Answer 14

naegleria fowleri

Question 15

naegleria fowleri

Answer 15

swim and die one week later

Question 16

headache fever, seizure, corneal infection, blindness

Answer 16

acanthamoeba

Question 17

acanthamoeba

Answer 17

chronic granuloma brain infection

-in immunocompromised

Question 18

balamuthia mandrillaris

Answer 18

amebic encephalitis with chronic granulomatous skin lesions

Question 19

toxoplasma gondii

Answer 19

raw pork and kitty litter

infection in AIDS patients

fever, node, liver, spleen enlargement, pneumonia
-growing brain mass on CAT scan
yellow-white fluffy patches on retina

Question 20

yellow-white fluffy patches on retina

Answer 20

toxoplasma gondii

Question 21

congenital toxoplasmosis

Answer 21

chorioretinitis
blindness
seizures
mental retardation

Question 22

pneumocystitis carinii

Answer 22

lung infection in majority of infections when young

• then latent
• PCP in immunocompromised (AIDS #1**)

Question 23

number one opportunistic infection in AIDS

Answer 23

pneumocystitis carinii - PCP

fever, SOB, cough, diffuse bilateral interstitial infiltrates
flying saucer shaped

Question 24

malaria

Answer 24

plasmodium sp

Question 25

tertian malaria

Answer 25

every 48 hours | -p. ovale and vivex

Question 26

quartan malaria

Answer 26

every 72 hours | -p malariae

Question 27

irregular bursts of chills and fevers

Answer 27

plasmodium falciprum malaria | -deadly

Question 28

life cycle of malaria

Answer 28

sporozoite to blood stream then to liver - round up - form trophozoite - nuclear division - form schizont - membrane form - form merozoite - cells burst merozoites to liver again - or RBCs - form tropozoite - nuclear division - schizonts - membrane form - more merozoites - burst

Question 29

hypnozoites

Answer 29

relapse malaria | -with p. vivex and ovale

Question 30

periods of chills and fevers

Answer 30

malaria

Question 31

plasmodium falciprum

Answer 31

dangerous malaria - anemia, sticky red cells - ischemic kidney, lung, brain - cerebral malaria - hepatosplenomegaly

Question 32

duffy A and B

Answer 32

surface antigens for binding by plasmodium | -absent some africna americans

Question 33

babesia microti

Answer 33

babesiosis

Question 34

babesia divergens

Answer 34

babesiosis

Question 35

babesiosis

Answer 35

malaria like - fever anemia following tick bite - northeast US - x-shaped maltese cross

Question 36

babesiosis in asplenic

Answer 36

serious infection

Question 37

sandfly

Answer 37

leishmaniasis

Question 38

blood borne

Answer 38

leishmania | trypanosoma

Question 39

forms of leishmaniasis

Answer 39

simple cutaneous diffuse cutaneous mucocutaneous leishmaniasis visceral leishmaniasis

Question 40

ulcer in nose mouth on mucocutaneous border

Answer 40

leishmaniasis

Question 41

kala-azar

Answer 41

visceral leishmaniasis - young malnourished children - abdomen pain, fever, anorexia, weight loss massive spenomegaly

Question 42

abdomen pain, fever, anorexia, weight loss, massive splenomegaly, severe anemia with decreased WBC

Answer 42

kala-azar | -visceral leishmaniasis

Question 43

skin ulcer that heals in a year, depigmented pale scar

Answer 43

cutaneous leishmaniasis

Question 44

tsetse fly

Answer 44

trypanosoma species | -african sleeping sickness

Question 45

hard/red painful ulcer that heals, fever, headache, dizzy, nodes swell, subsides then relapses, daytime drowsiness, coma, death

Answer 45

african sleeping sickness

Question 46

trypansoma brucei gambiense

Answer 46

west african sleeping sickness | -slow fever, wasting, late neuro sx

Question 47

trypansoma brucei rhodesiense

Answer 47

east african sleeping sickness - severe - death within weeks > months

Question 48

trypsonoma cruzi

Answer 48

chagas disease

Question 49

chagas disease

Answer 49

trypsonoma cruzi -southern US acute intermediate phase chronic phase

Question 50

reduviid bug

Answer 50

trypsonoma cruzi - armadillos, possums, rodents - chagas disease

Question 51

acute chagas disease

Answer 51

chagoma at bite site | -fever, malaise, nodes swell, heart CNS sx, tachycardia, EKG changes

Question 52

interpediate phase chagas disease

Answer 52

no symptoms

Question 53

chronic phase chagas disease

Answer 53

dilated cardiomyopathy | megadisease of colon/esophagus

Question 54

balantidium coli

Answer 54

diarrhea | -pig feces