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Flashcards in Parasites Deck (63)
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1

What condition does trichomonas vaginalis cause?

trichomoniasis/ Vaginitis. foul-smelling, greenish discharge; itching and burning

2

What is the morphology of Babesla bigemina (Babesia microti)?

sporozoa

3

How is Leishmania donovani transmitted?

sandfly

4

How is Ascaris lumbricoides transmitted?

eggs in soil may contaminate food or be inhaled

5

How is Giardia lamblia transmitted?

cysts in water

6

How is Taenla (T. saginata, T. sollum) transmitted?

ingestion of under cooked beef or pork

7

What are the clinical manifestation of Cryptosporidium parvum? (3)

crytosporidiosis-1-2 weeks incubation, followed by explosive watery diarrhea with abdominal pain for 5-11 days

8

What is the morphology of Ascaris lumbricoides?

roundworm, up to 25 cm

9

What is the morphology of Giardia lamblia?

flagellated protozoa

10

What are the clinical manifestations of Plasmodium species? (6)

jaundice, splenomegaly, hepatomegaly, anemia. Paroxysm, malaise, sudden chills and high fever, polyuria, rapid pulse, headache and nausea followed by drop in fever and profuse sweating for two or three hours. Paroxysms repeat every 48 to 72 hours

11

What disease does Plasmodium cause?

malaria

12

What is the morphology of Toxoplasma gondii?

sporozoa

13

What is the major reservoir for Necator americanus and Ancylostoma dudenale?

moist soil

14

How is Diphyliobothrium laturn transmitted?

ingestion of raw fish

15

What is the major reservoir for Leishmania?

many wild mammals

16

Describe the clinical manifestations of Schistosoma Infection. (5)

granulomas, fibrosis, inflammation of spllen, inflammation of liver, portal hypertension

17

What are the clinical manifestations of Wuchereria bancrofi? (3)

Lymphatic filarsis (elephantiasis)-8-12 month incubation, fever or asymptomatic, lymphadenitis, lymphangitis usually femoral, spreading down legs. Obstruction of lymphatics

18

Which lab findings are useful to help diagnose Leishmania?

cultured samples show Leishman-Donovan bodies.

19

What are the clinical manifestations of Diphyliobothrium letum? (2)

vitamin B12 deficiency and resulting megaloblastic anemia

20

What lab findings are useful to help diagnose Ascaris lumbricoides? (2)

finding worms or eggs in stool, or larvae and eosinophils in sputum

21

What are the clinical manifestations of Necator americanus and Ancylostoma duodenale? (3)

microcytic anemia, fatigue and nutritional deficiencies

22

What is the major reservoir for Diphyliobothrium letum?

fish

23

What disease(s) does Cryptosporidium cause? (2)

severe diarrhea in AIDS. Mild disease (watery diarrhea) in non HIV

24

How is tToxoplasma gondii transmitted? (3)

oral ingestion of feces of domestic cats or contaminated raw meat or water. Transplacental transmission can also occur.

25

How is Babesia diagnosed? (3)

blood smear, no RBC pigment, appears as maltese cross

26

What is the morphology of trichomonas vaginalis?

flagellated protozoa

27

How is entamoeba histolytica transmitted?

ingestion of food and water contaminated with cysts

28

How are Necator americanus and Ancylostoma duodenale transmitted?

burrows through skin of feet or legs

29

How is Wuchereria bancrofi transmitted?

mosquitos

30

Name two populations associated with toxoplasma gondii.

pregnant and immunocompromised patients