MLT Practice Test Questions with All Correct Answers
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Course
MLT
Institution
MLT
MLT Practice Test Questions with All Correct Answers
How have biological safety rules changed in recent decades? Why have they become more stringent? - Answer-As the hazard of transmitting agents such as HIV and hepatitis B and C viruses became recognized, more stringent biological safety proce...
MLT Practice Test Questions with
All Correct Answers
How have biological safety rules changed in recent decades? Why have they become
more stringent? - Answer-As the hazard of transmitting agents such as HIV and
hepatitis B and C viruses became recognized, more stringent biological safety
procedures were mandated.
List the components of an exposure control plan. - Answer-1. Standard Precautions 2.
PPE 3. Engineering controls 4. Work practice controls
What personal protective equipment is commonly worn when working in the biological
laboratory? List four items. - Answer-1. Gloves 2. Fluid-resistant gowns 3. Face shields
or masks 4. Goggles or safety glasses
Name four common laboratory disinfectants and two antiseptics. Explain when and how
antiseptics and disinfectants should be used. - Answer-dilute chlorine bleach
(hypochlorite), 1:10 dilution; alcohols, 70% to 85 %; iodophors, 75 parts/million (ppm);
phenols; quaternary ammonium compounds.
b. Any two of the following antiseptics are acceptable: alcohols, hydrogen peroxide,
triclosan, chlorhexidine (Hibiclens), and iodine.
c. Disinfectants are used on inanimate objects or surfaces; antiseptics are used on skin
or tissues.
coefficient of variation - Answer-a calculated value that compares the relative variability
between different sets of data
precision - Answer-reproducibility of results; the closeness of obtained values to each
other
accuracy - Answer-a measure of how close a determined value is to the true value
calibration - Answer-the process of checking, standardizing, or adjusting a method or
instrument so that it yields accurate results
quality assessment (QA) - Answer-in the laboratory, a program that monitors the total
testing process with the aim of providing the highest quality patient care; a synonym for
quality assurance
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