4183223
| Pregunta | Respuesta |
| - Disposal of non reusable sharps occurs by : a. autoclaving b. safety box c. red or orange bags with biohazard symbol d. all of the above | B- Safety Box |
| -This bacteria is: a. stained by methyl violet b. gram positive cocci c. gram negative bacilli d. gram positive bacilli | C- gram negative bacilli |
| - Plastic syringes can be sterilized by : a. ionizing radiation b. boiling c. autoclaving d. all of the above | A- ionizing radiation |
| -The body tube of ordinary microscope contains : a. eyepiece lens b. objective lens c. fine and coarse adjustment d. all of the above | D- all of above |
| -In detection of motility by ordinary microscope , all of the followings are true , except: a. mirror side is concave b. condenser is downward c. objective lens is oil immersion d. diaphragm is semiopened | C- objective lens is oil immersion |
| deep agar is used for a. isolation of bacteria b. anaerobic culture c. preservation of pure culture d. all of the above | B- anaerobic culture |
| -Loeffler's serum is used to isolate : a. streptococci b. pneumonia c.diphtheria d. meningococci | C- Diphetheria |
| - All of the following about throat swabbing are true except a. use to diagnose upper RT infection b. kept at 37C till transport c. taken by sterile ordinary swab d. should touch both tonsils and tonsillar fossae | B- kept at 37 C till transport |
| -All of the following about CSF sampling are true except: a. taken by sterile lumbar puncture needle b. taken between L4 and L5 c. stored at 4C until culture d. cooled in sterile universal container | C- stored at 4 C until culture |
| -All of the following about growth on Macconky are true except: a. lactose fermenters appear pink b. acidic ph change the color of andrad's indicator c. non lactose fermenters appear uncolored or pale yellow d. non of the above | B- acidic PH chande the color of andrad's indicator |
| -Alkaline ph changes the indicator in: a. methyl red test b. sugar fermentation c. urease test d. all of the above | C- urease test |
| - To confirm HIV +ve result by ELISA the following test is used: a) Immunofluorescence b) immunoblotting c) molecular hybridization d) PCR | B- immunoblotting |
| Heavy duty gloves are used in all of the following except : A. Washing contaminated items B. Environmental cleaning C. Surgical procedures D. Transporting wastes | C- surgical procedures |
| - recording the results of ELISA is done in the form of: a) color change by spectrophotometer b) difference in intensity by phase contrast microscope c) turbidity measure by nephelometer d) passage of reaction product on gel electrophoresis | A- color change by spectrophotometer |
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