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Micro Exam 4 > Parasites > Flashcards

Flashcards in Parasites Deck (46):
1

Entamoeba Histolytica

- only pathogenic intestinal ameba
- Fecal/oral
- Flask shaped ulcer
- Liver abscess
- diarrhea
- Iodoquinol
- metro: moderate to sever

2

Entamoeba coli/dispar

- non pathogenic
- Fecal/oral

3

Blastocysts hominis

- Protozoan
- diarrhea
- pruritus
- self limited

4

Naegleria fowleri

- meningoencephalitis
- warm, brackish water
- 2 flagella
- nasal mucosa to brain
- Coma and death
- CSF or tissue

5

Acanthomoeba

- meningeoenchephalitis
- Corneal ulcers and keratitis
- skin breaks, traumatic penetration
- humidifiers, contact solution
- Ophthalmic solution, transplant
- Amp B, miconz, rifamp

6

Giardia

- fecal/oral
- diarrhea
- greasy stools
- 2 sucking disks
- nitazoxnide

7

What is the #1 parasite infection in the US?

Giardia

8

Dientamoeba fragilis

- commensal
- Diarrhea >1 week
- No known cyst
- 2 nuclei
- Iodoquinol, Paramycin

9

Trypanosome bruci complex

- African sleeping disease
- Tsetse fly
- antigenic shifting
- swollen LN
- Meningeoencephalitc stage
- Blood, CSF, LN
- Pentamide, suramin
_ melarsoprol: CNS

10

Trypanosome cruzi

- Chagas disease
- Reduviid bug
- Blood transfusion, transplant
- southern US
- Chagoma
- Megacolon, muscle waste
- Blood, tissue
- Nifurtimox, benznidazole

11

Leishmania

- sandfly
- amastigote
- Amp B

12

L. braziliensis

- mucocutaneous

13

L. tropica

- oriental sore

14

L. donovanii

- Kala-azar
- visceral
- opportunistic

15

Trichinosis vaginalis

- STD
- no known cyst stage
- vaginitis, purulent discharge
- men asymptomatic
- metro

16

Balantidium coli

- commensal
- Pig
- Diarrhea
- Trophozoite: macro and micro nuclei
- Tetracycline

17

Isospora belli

- immunosuppressed
- Mild GI
- modified acid fast
- trimeth/sulfa
- cipro

18

Cyclospora cayetanensis

- contaminated water or food
- immune suppressed
- nausea, diarrhea
- modified acid fast
- trimeth
- cipro

19

Cryptosporidium parvum

- fecal/oral
- Resistant to chemical treatment
- immunosuppressed
- Surface water
- AIDS: fatal, no treatment
- modified acid fast
- Nitazoxanide

20

Plasmodium

- Malaria
- blood, liver, blood
- Anopheles mosquito
- Congenital transplacental transfer
- Paroxysm: 24 hour fatal
- RBC ruptures and releases merozoites
- smear
- Chloroquine

21

P. vivax

- parox: 4H
- 2-14 mero
- chronic infections

22

P. malariae

- Quartian malaria
- 6-12 mero
- Parox: 72H

23

P. falciparum

- blackwater fever
- irregular parox: 36-48H
- most severe form
- cigar shaped
- small rings inside cell

24

Babes microti

- Texas cattle fever
- deer tick
- Atorvaquone + azith
- clinda + quinine

25

Toxoplasma gondii

- Cats, pork, lamb
- congenital
- CNS disease
- AIDS: trimeth
- Pyrimetha & leucovorin
- Sulfadiazine
- corticosteroids

26

Taenia saginata

- beef tapeworm
- one worm = 25mg
- stool/segments
- Praziquantel

27

- Taenia solium

- pork tapeworm
- Mexico
- cysticercosis
- bain or eye
- radial striations
- 3 pairs of hooklets
- Scolex destroyed
- Praziquantel

28

Diphyllobothrium latum

- fish or broad tapeworm
- vitamin B12
- pernicious anemia
- praziquantel

29

Hymenolepsis nana

- dwarf tapeworm
- diarrhea, headache
- praziquantel

30

echinococcus granulosis

- hydatid cyst disease
- fecal/oral, eggs
- cysts in liver, muscle, brain
- remove cyst before it ruptures
- mebendazole
- albendazole

31

Schistosome mansoni

- Blood fluke, colon
-- SA/Africa
- Large spine
- Scarring (cancer)
- hepatosplenomegaly
- Praziquantel

32

Schistosome japonicum

- blood fluke, intestine
- far east
- small lateral spine
- praziquantel

33

Schistosome haemotobium

- skin, blood, lungs, venous system, bladder
- Africa, middle east
- bladder cancer
- id eggs
- metronidazole

34

clonorchis sinensis

- chinese liver fluke
- fresh water fish
- biliary ducts
- smallest helminth eggs
- praziquantel

35

Fasciola hepatica

- liver fluke
- water plants
- hawaii
- biliary obstruction and inflammation
- largest helminth eggs
- praziquantel

36

Paragonimus westermani

- lung fluke
- crabs and crayfish
- hepatosplenomegaly
- pulm
- discolored sputum
- praziquantal

37

Enterobius vermicularis

- pinworm
- tape
- albendazole
- pyrantal pamoate (OTC)
- Nightime

38

What is the most common helminth infection in US?

Enterobius vermicularis

39

Trichruris trichuria

- Whipworm
- Adulta: 1 year
- hyaline plug
- Albendazole
- mebendazole

40

Ascaris lumbricoides

- large intestinal roundworm
- eosinophilic pneumonitis (Loefflers)
- Chitin shell
- albendazole
- mebendazole

41

Nectar americanus

- hookworm
- blood, lung, cough, swallow
- iron deficient anemia
- Albendazone
- Mebendazole

42

Strongyloides stercoralis

- blood, lung, cough, swallow
- auto infect
- disseminated in aging and immunocomp
- rhabditiform larvae
- ivermectin
- albendazole

43

Trichinella spiralis

- pork/bear
- larvae migrate to tissue
- muscle
- coiled larva
- mebendazole

44

Sarcoptes scabiei

- itch
- crowded conditions
- mites burrow
- female eggs
- rash/ pimple
- intense itching
- mite from scrapings
- 5% permethrin
- Ivermectin

45

Sucking lice

- body louse
- vector for rickettsia, spirochete
- inject salivary fluids into body
- itching
- red papules
- mites from skin scrapings
- 5% permethrin
- 1% permethrin, lindane

46

Cimex

- Bed bugs
- do not transmit disease
- 1 year
- allergy
- mites from skin scrapings
- hot water
- professionals