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Microbiology > Protozoa > Flashcards

Protozoa Flashcards

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Biology 101 flashcards
1
Q

Most invasive parasite among Entamoeba

A

Entamoeba histolytica

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2
Q

Eukaryotic organism that lacks membrane-bound organelles

A

Entamoeba histolytica

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3
Q

Flask-shaped colon ulcers

A

Amebic colitis

Entamoeba histolytica

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4
Q

Anchovy sauce-like aspirate

A

Amebic liver abscess

Entamoeba histolytica

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5
Q

DOC for Entamoeba histolytica cyst carrier state

A

Diloxanide furoate

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6
Q

DOC for amebic colitis and amebic liver abscess

A

Metronidazole

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7
Q

Falling leaf motility

A

Giardia lamblia

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8
Q

MCC of back packers diarrhea associated with ecological water

A

Giardia lamblia

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9
Q

Abdominal pain, diarrhea, and excessive flatus smelling like rotten eggs

A

Giardia lamblia acute infection

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10
Q

Opportunistic intestinal protozoa (HIV patients); causes self-limited non-bloody diarrhea

A

Cryptosporidium parvum

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11
Q

DOC for Cryptosporidium parvum infection

A

Nitazoxanide

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12
Q

Exists only as a trophozoite; pear-shaped, flagellated

A

Trichomonas vaginalis

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13
Q

Ping-pong transmission

A

Trichomonas vaginalis

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14
Q

Strawberry cervix; foul-smelling, greenish vaginal discharge

A

Trichomonas vaginalis

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15
Q

Banana-shaped gametocyte

A

P. falciparum

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16
Q

Recurrence of sx after a temporary abatement (2-4 weeks); seen in P. falciparum and P. malariae infection

A

Recrudescence

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17
Q

Return of a disease after its apparent cessation (1-6mos) due to reactivation of hypnozoites; seen in P. ovale and P. vivax

A

Relapse

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18
Q

Schuffner dots

A

P. ovale

P. vivax

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19
Q

Maurer dots

A

P. falciparum

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20
Q

Ziemann dots

A

P. malariae

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21
Q

Tertian fever

A

P. falciparum
P. vivax
P. ovale

22
Q

Quartan fever

A

P. malariae

23
Q

When is the highest yield to take blood samples in malaria?

A

During fever or 2-3 hours after peak

24
Q

Durck granulomas

A

Cerebral malaria

25
Q

Blackwater fever is caused by?

A

P. falciparum

26
Q

Algid malaria

A

Septic shock

27
Q

Areas of high endemicity for malaria

A

Palawan
Kalinga-Apayao
Ifugao
Agusan del Sur

28
Q

Areas of Chloroquine-resistance

A

Palawan
Davao del Norte
Compostela Valley

29
Q

Definitive host of Toxoplasma gondii

A

Cat

30
Q

Preferred dx test for Toxoplasma gondii infection

A

IgM antibody

31
Q

DOC for Toxoplasmosis

A

Sulfadiazine + pyrimethamine

32
Q

Vector of Trypanosoma cruzi

A

Reduviid bug

33
Q

American trypanosomiasis

Chagas disease

A

Trypanosoma cruzi

34
Q

Most commonly and most severely affected tissue by Trypanosoma cruzi

A

Cardiac muscle

35
Q

Romana’s sign (periorbital edema)

Chagoma (nodule near bite)

A

Acute Chagas’ disease

36
Q

African sleeping sickness is caused by?

A

Trypanosoma brucei

37
Q

Vector of Trypanosoma brucei

A

Tsetse fly (Glossina)

38
Q

West African sleeping sickness

A

Trypanosoma brucei gambiense

39
Q

Eastern African sleeping sickness

A

Trypanosoma brucei rhodesiense

40
Q

Enlargement of the posterior cervical lymph node seen in African sleeping sickness

A

Winterbottom’s sign

41
Q

Hyperesthesia seen in African sleeping sickness

A

Kerandel’s sign

42
Q

Mott cells

A

Encephalitis (African sleeping sickness)

43
Q

Flagellated marine protists

A

Dinoflagellates

44
Q

MCC of red tide in the Philippines

A

Pyrodinium bahamense var compressum

45
Q

Acquired by swimming in contaminated pools

A

Primary amebic meningoencephalitis caused by Naegleria fowleri

46
Q

The only ciliated protozoan to cause human disease

A

Balantidium coli

47
Q

Round-based, wide-necked intestinal ulcers

A

Balantidial dysentery

48
Q

Intraerythrocytic ring-shaped trophozoites in tetrads in the form of a Maltese cross

A

Babesiosis

49
Q

Vector of Leishmania spp

A

Sandfly (Phlebotomus)

50
Q

DOC for Leishmaniasis

A

Sodium stibogluconate

51
Q

Pseudopod-forming nonflagellated protozoa; brownian movement

A

Entamoeba histolytica

Microbiology (9 decks)

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