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Steph MICRO > Protozoa > Flashcards

Protozoa Flashcards

0
Q

Most common extra intestinal form of Entamoeba histolytica infection

A

Liver abscess (anchovy sauce-like aspirate)

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1
Q

Flask-shaped colon ulcers

A

Amebic colitis (sec to Entamoeba histolytica)

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2
Q

DOC for E. histolytica cyst Carrie state

A

Diloxanide furoate

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3
Q

Falling leaf motility

A

Giardia lamblia

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4
Q

Chronic infection of G.lamblia

A

Steatorrhea

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5
Q

DOC Cryptosporidium parvum

A

Nitazoxanide

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6
Q

Pear-shaped, flagellated trophozites (exists only in trophozites form)

A

Trichomonas vaginalis

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7
Q

Ping pong transmission

A

Trichomonas vaginalis

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8
Q

Foul-smelling, greenish vaginal discharge; strawberry cervix

A

Trichomonas vaginalis

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9
Q

Intermediate and definitive host of Plasmodium

A

Man (intermediate)

Mosquito (definitive)

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10
Q

Scientific name of female mosquito implicated in Plasmodium infection

A

Anopheles flavirostris minimus

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11
Q

Partial immunity seen in individuals who completely recover from falciparum malaria

A

Premonition

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12
Q

4 plasmodium species

A

P falciparum
P vivax
P malariae
P ovale

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13
Q

Only form of Plasmodium that can cross the BBB; worst form

A

P. Falciparum

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14
Q

Banana-shaped gametocytes

A

P. falciparum

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15
Q

Only plasmodium species with QUARTAN periodicity (every 72 hours)

A

P. malariae

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16
Q

Plasmodium species that can cause recrudescence (recurrence after temporary abatement: 2-4 weeks)

A

P. falciparum

P. malariae

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17
Q

Plasmodium species that can cause relapse (return after apparent cessation; 1-6 mos)

A

P. ovale

P. vivax

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18
Q

Punctuate granulations in RBC due to P ovale and P vivax

A

Schuffner dots

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19
Q

Maurer dots are coarse granulations present in RBC due to what infection.

A

P. falciparum

20
Q

Fine dots present in RBCs invaded by P malariae

A

Ziemann dots

21
Q

Blackwater fever

A

Acute renal failure secondary to P falciparum malaria

22
Q

Areas of high malarial endemicity (4)

A

Palawan
Agusan del sur
Kalinga-Apayao
Ifugao

23
Q

Areas of chloroquine-resistance (3)

A

Palawan
Davao del Norte
Compostela valley

24
Q

Drug added to chloroquine to cov for hypnozoites produced by P. vivax and P. ovale infection

A

Primaquine

25
Q

DOC pregnant patient with malaria

A

Quinidine or quinine

26
Q

DOC for chloroquine resistant malaria

A

Mefloquine + doxycycline

27
Q

Definitive host of Toxoplasma gondii

A

Domestic cat

28
Q

Ring enhancing lesions

A

T. gondii encephalitis (immunocompromised)

29
Q

Intracranial calcifications

A

Congenital Toxoplasmosis

30
Q

Trypanosoma cruzi is transmitted by

A

Reduviid (Triatoma) bug

31
Q

DOC Trypanosoma cruzi infection

A

Nifurtimox

32
Q

Most severely and frequently affected tissue by Trypanosoma cruzi infection

A

Cardiac muscle (Myocarditis)

33
Q

Diagnostic method for T. cruzi that allows an uninfected, laboratory raised bug to feed on a suspected patient

A

Xenodiagnosis

34
Q

Romana’s sign

A

Acute Chagas’ disease (T. cruzi)

35
Q

Tse tse (glossina) bite

A

Trypanosoma brucei

36
Q

Winterbottom’s sign

A

Trypanosoma brucei

37
Q

Enlargement of the posterior cervical LN in Trypanosoma brucei infection

A

Wintebottoms sign

38
Q

Kerandel’s sign (hypersthesia)

A

T. brucei

39
Q

Plasma cells with cytoplasmic immunoglobulin globules seen in T. brucei encephalitis

A

Mott cells

40
Q

DOC for CNS involvement in T. brucei infection

A

Melarsoprol

41
Q

MCC of red tide in the Philippines

A

Pyrodinium bahamense var compressum

42
Q

Months with red tide in the Philippines

A

May to August

43
Q

Only ciliated protozoan to cause human disease

A

Balantidium coli

44
Q

Maltese cross shaped trophozites

A

Babesia microti

45
Q

DOC leishmaniasis

A

Sodium stibogluconate

46
Q

Mucocutaneous leishmaniasis

A

Leishmania braziliensis

47
Q

Visceral/kala-azar Leishmaniasis

A

Leishmania donovani

48
Q

Cutaneous leishmaniasis

A

Leishmania tropica

Steph MICRO (7 decks)

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