J P
Quiz by , created more than 1 year ago

this is for MLT diagnostic microbiology

4
0
0
J P
Created by J P about 2 years ago
Close

Exam 2

Question 1 of 7

1

Air flow in a microbiology laboratory should be:

Select one of the following:

  • from lower to higher risk areas

  • minimized as much as possible

  • optimized to prevent the settling of dangerous aerosols

  • well-filtered by recirculating it through numerous filters before recycling

Explanation

Question 2 of 7

1

Procedures such as grinding, mincing, vortexing, and preparing smears:

Select one of the following:

  • are hazardous and should be performed while wearing gloves and gown protection.

  • create aerosol droplets and should be performed only in an approved biosafety cabinet.

  • should be avoided with specimens known to contain infectious agents

  • produce a spill hazard and should be performed over an absorptive mat.

Explanation

Question 3 of 7

1

Class I biological safety cabinets:

Select one of the following:

  • sterilize the air as it passes over the material in the cabinet

  • protect the environment from contamination by biological agents by filtering the air as it is exhausted from the cabinet.

  • are completely enclosed and have gloves that enable the worker to manipulate the material in the cabinet.

  • are often called laminar flow hoods.

Explanation

Question 4 of 7

1

Optimal protection of specimen, personnel, and environment is accomplished with which class of biological safety cabinet?

Select one of the following:

  • Class I

  • Class II

  • Class III

  • Class IV

Explanation

Question 5 of 7

1

The method of choice for sterilizing items such as antibiotic solutions, chemicals, radioisotopes, and vaccines that are heat-sensitive is:

Select one of the following:

  • dry, low temperature heat.

  • moist, low temperature heat.

  • filtration

  • chemical

Explanation

Question 6 of 7

1

To be sterilized in an autoclave, infectious medical waste should be:

Select one of the following:

  • packed tightly to avoid dangerous pressure pockets.

  • processed for 15 to 20 minutes at 121 C and 30 pounds per square inch (psi) pressure.

  • processed for 30 to 60 minutes at 132C and 15 psi pressure

  • processed for at least 1 hour at 121 C and 15 psi pressure.

Explanation

Question 7 of 7

1

The autoclave sterilizes material by:

Select one of the following:

  • applying dry heat at high temperatures and pressure.

  • infusing gaseous chemicals that kill organisms.

  • applying moist heat at high temperatures and increased pressure.

  • cleaving protein bonds found in most biological agent cell walls.

Explanation