Test
Cocci and Bacilli
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (20)
1Which of the following correctly describes Staph epidermidis?
- Asusceptible to penicillin G
- Bcan cause UTI in catherized patients
- Clikely to be in a biofilm on a central venous catheter surface
- Dresistant to vancomycin
- Ecoagulase positive
2A box of meat prepared by a person with a boil on his neck is left out of refrigerator. 3 persons became violently ill after eating the sandwiches. The most likely cause is:
- AClostridium perfringes type A toxin
- BCoagulase from Staph aureus
- CStaph aureus enterotoxin
- DPenicillinase given to inactivate penicillin in the meat
3Quellung test is used for identification of:
- APneumococci
- BStreptococci
- CH influenza
- DKlebseilla
4A young man crashes his bicycle injuring one leg, bacteria from the wound and blood culture are isolated and identified. Osteomyelitis is diagnosed. The most common causative organism is:
- AE coli
- BStaph epidermidis
- CStaph aureus
- DEnterococcus fecalis
5A 22 year old female presents with fever, right knee swelling . Her joint aspirate shows gram negative diplococci. What is the most common cause of the patient septic arthritis?
- AStaph aureus
- BStrept pyogens
- CPseudomonus
- DNeisseria gonorrhea
6Active immunization against diptherira :
- ASubunit vaccine
- BAluminium precipitated toxoid
- CAntitoxin serum
- DKilled vaccine
7Which of the following is true about Listeria monocytogens?
- APathogenic to man only
- BGram positive spore forming bacilli
- CTumbling motility at 37 degree
- DHas a capsule
- ETransmitted by contaminated milk
8A 53 year old farmer has a circular lesion of black eschar surrounded by edema (malignant pustule). Gram stain shows gram positive bacilli in chains. Which is false about this organism?
- ANon hemolytic on blood
- BExotoxin producing
- CTreated by penicillin
- DHas polysaccharide capsule
- ESpore forming
9Pathogenicity of B.anthracis is due to:
- AEndotoxin
- BIg A protease
- CA-B exotoxin
- DC5a peptidase
10Immunity against Listeria monocytogens is mainly:
- AHumoral
- BCell mediated
- CInnate
- DIg A mediated
11Pseudomembranous colitis is mailnly diagnosed by:
- AToxin in blood
- BOrganism from stool
- CGram stained film
- DToxin in stool by cytotoxic effect on cell culture
12Pathogenesis of which of the following includes retrograde axonal transport?
- ACl.tetani
- BCl.botulinium
- CC.diphtheria
- DB.anthracis
13Rapid test for diagnosis of gas gangrene:
- ACulture on blood agar
- BNagler reaction
- CSugar fermentation
- DElek test
14Which is not capsulated?
- ASalmonella
- BShigella
- CKlebseilla
- DE.coli
15Diagnostic titer of Enteric fever in widal test :
- A1/80
- B1/40
- C1/160
- D1/320
16A gram negative, oxidase positive bacillus that can grow at 42 degree causes cough and greenish sputum on smoke inhalation produces a toxin that works by:
- AActivating acetylcholine estrase
- BInhibiting elongation factor 2
- CProducing hemolysin
- DIncreasing CAMP
17Gullian Barre syndrome is a complication of:
- APseudomonus
- BH.pylori
- CCampylobacter
- DCholera
18A 63 year old man eats poorly cooked seafood (oysters). 24 hours later, he develops fever and bloody diarrhea. He is positive for curved rod bacteria which is:
- AHalophilic, sucrose positive, produces heat labile cytotoxin
- BHalophilic, sucrose negative, produces heat stable cytotoxin
- COptimum growth at 42
- DReservoir is cattle and birds
19Diagnostic titer in Brucella:
- A1/80
- B1/160
- C1/40
- D1/320
20The main component of H.influenza type B vaccine :
- AToxoid
- BMutant strain
- CWhole cell killed vaccine
- DPolysaccharide capsule with protein carrier
Información
- Descripción
- Gram positive and negative cocci and bacilli
- Autor
- Marina Michail
- Idioma
- English
- Visitas
- 135
- Etiquetas
- Valoración
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