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Khjanrt: Micropara > Random Parasites > Flashcards

Random Parasites Flashcards

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1
Q

Have 4 nuclei cyst and 1 nuclei trophozoite associated with erythrophagocytosis. Creating flask shaped ulcer and anchovy like aspirates.

A

Entamoeba histolytica (Amoebiasis/acute colitis)

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2
Q

Treatment of amoeba asymptomatic

A

Luminal agent: iodoquinol or paramomycin

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3
Q

Tx for acute colitis

A

Metronidazole or tinidazole + luminal agent

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4
Q

ALA (amoebic liver abscess) TX

A

Metronidazole or tinidazole + luminal agent + percutaneous drainage

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5
Q

Charcots leyden crystals in microscope

A

EntAmoeba histolytica

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6
Q

Cause of primary amoebic meningoencephalitis (PAM). History of swimming (inhaled via nose)

A

Naegleria fowleri (necrotizing brain)

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7
Q

History of soft contact lens used gradually developing ulceration and keratitis. Also causes granulomatous amebic encephalitis in chronic patients presents space occupying lesion

A

Amebic keratisis 2 to acanthamoeba.

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8
Q

Treatment for naegleria fowleri
Treatment for acanthamoeba

A

Amphotericin B
Miltefostine or ketoconazole and keratoplasty

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9
Q

Double cell wall trophozoite
Thick cell wall

A

Acanthamoeba
Naegleria fowleri

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10
Q

Affects immunocompetent host causing GAE. Prinarily from soul and dust

A

Balamutia (not common)

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11
Q

Teen swimmer suddenly developing sudden meningitis

A

Naegleria fowleri

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12
Q

Case:
A farmer with cc of bloody diarrhea whi raises pigs and drinks from contaminated water. Develops wide neck ulcer

A

Balantidium coli

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13
Q

Large ciliated bean shaped macronucleus

A

Balantidium coli

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14
Q

Tx of balantidium colitis

A

Tetracycline

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15
Q

Case:
A patient drank from mountain stream or daycare children presents with foul smelling greasy stool and bloated. Trophozoite seen 2 nuclei and flagella

A

Giardia lamblia (giardiasis)

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16
Q

Microorganism diagnosed using enterotest

A

Giardia lamblia and strongyloides stercoralis

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17
Q

Falling leaf motility and old man or owls eye with eyeglass. Smiley face din

A

Giardia lamblia

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18
Q

Risk factors giardia

A

Hikers, daycare children and MSM

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19
Q

Tx for giardia

A

Metronidazole

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20
Q

Case:
A sexually active, female, frothy smell yellow green vaginal discharge with colpitis macularis (strawberry cervix). On wet mount show motile trophozoite with jerky mvmt. pH?

A

Trichomonas vaginalis
Alkaline >4.5 unlike fungi candidiasis

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21
Q

Tx for trichomoniasis

A

Metronidazole both partners

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22
Q

Case:
A boy from Brazil/US presents with cardiomyopathy and megaesophagus with hx of bug bite near the eye

A

Trypanosoma cruzii aka CHAGAS disease

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23
Q

Periorbital swelling in chagas
Site of inoculation of chagas

A

Romanas sign
Chagoma

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24
Q

Infective and diagnostic stage of chagas or trypanosoma cruzii

A

Metacyclic trypomastigote (feces not the bite exactly)
Dx. Trypomastigote (blood smear)

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25
Tx of chagas trypanosoma cruzii
Nifurtimox or benznidazole (ASAP)
26
Cruz crosses heart and gut
BIG CHAGAS: Cardiomyopathy: Colon
27
African traveller develops developed fever with posterior LDN then somnolence and coma. Smear show motile trypomastigote
Trypanosoma brucie (gambiense and rhodesiense) acutE-R
28
Trypanosomal chancre Winterbottom sign Kerandels sign
Rhodesiense
29
Vector of trypanosoma brucei
Tsetse fly (g spp)
30
Tx for bT. rucei
Suramin (serum) penta-sur Melarsoprol (CNS)
31
Middle eastern refugee presents with non healing ulcer with raised borders. Oriental button/sore. Biopsy showed amastigote in macrophages
Leishmania tropica
32
Tapir nose and chiclero ulcer on pinna
Leishmania braziliensis (mucocutaneous)
33
Indian child with fever wt loss, massive splenomegaly and pancytopenia(anemia). Spleen aspirate shows macrophages filled with oval shaped organism
L. Donovani
34
Acronym for L. Donovani
Si Dustin inAZAR nag DUM DUM
35
Diagnosis of leishmaniasis
Skin tissue spleen and Ln biopsy NNN culture medium Montenegro skin test (past and present infection)
36
Tx for leishmania
Amphotericin B for visceral or donovani Sodium stibogluconate (1st line) Miltefostine (2nd line)
37
Vector fo leishmania
Sandfly (promastigote)
38
AP leishmania ET trypanosoma brucei spp APET cruzi
Trypanosoma Infective: metacyclic trypomastigote Dx: trypomastigote Leishmania Promastigote Amastigote
39
Banana shaped plasmodium
Falciparum
40
Band sheet plasmodium
Malariae
41
Malignant tertian
Falciparum (q 48)
42
Benign tertian
Ovale and vivax
43
Quartan fever
Malariae
44
Q 24 hrs fever
Knowlesi
45
What causes the fever?
Merozoite infection of rbc
46
Hypnozoite
Ovale and vivax
47
1st and 2nd common parasite
Malaria and amoeba
48
Stages of plasmodium paroxysm
Cold stage (vasoconstriction) 15-60mins Hot stage flush (40-41C) systemic sx 2-6 hrs Sweating stage occurs over the next 2-4 hrs after flush phase
49
Recrudescence vs relapse
Below detectable rate hence no symptoms Cured pero may dormant na hypnozoite
50
Common in asenia, elderly and immunocompromised host transmitted by ixodes tick causing similar fever with malaria
Babesia
51
Cross maltese
Babesiosis
52
Tx for babesia
Atovaquone (killing) and azithromycin (no growth)
53
Diarrhea causing paradite in HIV/AIDS
Cryptosporidium spp
54
Cryptosporidium spo causing malabsorption syndrome
Isospora belli
55
Cryptosporidium causing autoinfection
C. Parvum
56
HIV pt developing new onset of seizure and on MRI shows ring enhancing lesion
Toxoplasmosis (gondii)
57
Pregnant woman often cleans the cat litter develop fever and malaise. Upon delivering the baby. Showed chorioretinitis, hydrocephalus and intracerebral calcification (CHI triad)
Toxoplasmosis
58
Crescent shaped parasite inside the macrophage on tissue biopsy
Toxoplasma gondii
59
Tx for toxoplasma
Pyrimethanine + leucovorin (folic toxicity) + sulfadiazine Prophy is cotrinoxazole (esp CD4 <100)
60

Khjanrt: Micropara (4 decks)

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