Giardia + Trichomonas +Free living Ameba Flashcards

(41 cards)

1
Q

Giardiasis caused by — ??

A

Giardia lamblia

473

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2
Q

Pathogenic form of giardia ??

A

Trophozoite

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2
Q

Stages of giardia ??

A
  1. Trophozoite
  2. Cyst
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3
Q

Infective form of giardia ???

A

Cyst

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4
Q

Mode of transmission of giardia ??

A

Fecally contaminated food & water - in gestion of the cyst

475

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5
Q

Tx of giardiasis&raquo_space;??

A

Metronidazole

477

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6
Q

Features of stool in giardiasis ??

A
  1. Non bloody diarrhea
  2. Stool-Foul smelling

477

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7
Q

Passage of yellowish & greasy stools in which there is excess of fat –

A

Steatorrhea

475`=

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7
Q

Giardia antigen detection test ??

A

ELISA

476

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8
Q

Test for the detection of trophozoite ??

A

String test

476

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9
Q

DNA based technique for detection nucleic acid – ??

A

PCR

476

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10
Q

Steatorrhea cause in giardia
ONE LINE ??

A

Malabsoprtion of fat

476

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11
Q

Stool specimen is taken for which thing ?/

A

Only cyst

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11
Q

Invasive (+) = ??
Non-Invasive (+) =??

A

-Amoebiasis
-Giardiasis

477

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12
Q

Evidence of trophozoite can be found from which specimen ?/

A
  1. Bile
  2. Jejunal biopsy
  3. Duodenal secretions

476

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13
Q

Clinical features of giardiasis ??

A
  1. Watery-Non bloody diarrhea
  2. Nausea
  3. Flatulence
  4. Abdominal cramps
  5. Steatorrhea
  6. Anorexia

476

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14
Q

Virulence factors of giardia ??

A
  1. Cytoskeleton
  2. Adherence
  3. Encystation
15
Q

Tests for giardiasis ??

A
  1. Stool examination
  2. String test - Detect trophozoite
  3. Detect G atg in stool

477

16
Q

Trichomoniasis is caused by ?

A

Trichomonas vaginalis

480

17
Q

mode of transmission of T V ?

A

sexual intercourse

18
Q

infective & pathogenic form of TV ?

19
Q

is there any cyst in TV ?

20
Q

Clinical features of TV in female ?

A
  1. watery
  2. foul smelling
  3. grennish vaginal discharge
  4. itching
  5. burning sensation
21
Q

specimen collection in Lab Dx for TV in man female ?

A

morning urethral discharge & urine sediment after prostate massage
+ high vaginal swab

22
clinical features in male by TV /
1. asymptomatic 2. 10%= urethritis
23
other test for TV ?
1. serological test-not useful 2. NAAT-PCR 3. culture
24
microscopic examination for TV ?
1. slide stained with normal saline- trophozoite 2. wet mount preparation of vaginal/prostatic secretion = pear shaped trophozoite & typical jerky motion
25
advice given to trichomoniasis pt ?
1. to drink plenty of water 2. to use condom
26
Tx of TV ?
1. Metronidazole - flagyl 2. tinidazole - tindamax
27
why amoebiasis is invasive ?
invade gut wall by = HISTOLYSIN
28
why no cyst in TV ?
as it does not expose to enviroment no need of durable cyst stage
29
opportunisticc intestinal protozoa ?
cyptosporidium cyclospora isospora microspora
30
free living ameba name >
naegleria acanthamoeba balamuthia
31
disease caused by free living ameba ?
primary amebic meningoenchephalitis - PAM granulomatous amebic encephalitis - GAE
32
extra disease in acanthamoeba ?
keratitis
33
brain eating ameba ?
naegleria fowleri
34
mode of transmission of N f >
olfactory tract
35
parasites transmitted by blood transfusion
plasmodium leishmania toxoplasma gondi babesia micoti trypnosoma cruzi
36
stage that infects human in Acanthamoeba ?
trophozoite
37
contact lens euser disase >
acanthamoeba - 472
38
how to identify axostyle of giardia ? according to levinson
To identify the axostyle of *Giardia* according to Levinson: 1. Prepare a stool sample (wet mount or stained slide). 2. Use a microscope to look for pear-shaped *Giardia* trophozoites. 3. Identify the **axostyle** as a thin, rigid, rod-like structure running through the midline of the trophozoite. 4. Confirm with staining (e.g., trichrome) and compare with reference images. The axostyle provides structural support and is a key diagnostic feature.