MLS 220 EXAM 1 QUESTIONS WITH DETAILED
VERIFIED ANSWERS; ALREADY GRADED A
1:10 or 1:100 bleach solutions are a common disinfectant in
laboratories. How often should these bleach solutions be
remade in order to ensure their chlorine levels remain
adequate?
a. Hourly
b. Daily
c. Weekly
d. Monthly - correct answer- c. Weekly
A 50 mL volume being held in an Erlenmeyer flask with a
tolerance of 0.05 mL is actually more accurately described as :
a. 45 mL - 55 mL
b. 49.95 mL - 50.05 mL
c. 50 mL - 50.05 mL
d. 49.5 mL - 50.5 mL - correct answer- b. 49.95 mL
- 50.05 mL
,A chemical inventory, safety data sheets, labeling requirements,
engineering controls, and waste removal and disposal are all a
part of what OSHA mandate?
a. Chemical Hygiene Plan
b. Blood Borne Pathogen Plan
c. Core Standards
d. Hazard Communication Standards - correct answer-
a. Chemical Hygiene Plan
A class C fire is a fire caused by:
a. Electrical equipment
b. Flammable liquid and gases
c. Ordinary combustibles
d. A class C fire cannot be extinguished - correct answer-
a. Electrical equipment
A collection of tests ordered at the same time and under a single
order is known as a(n):
,a. Analyte
b. Test Selection
c. Test Panel
d. Testing Algorithm - correct answer- c. Test
Panel
A graphical representation of known standard or calibrator
points is known as a __________?
a. Expected Value
b. Standard/Calibration Curve
c. Reference Range
d. Calibration Interval - correct answer- b.
Standard/Calibration Curve
A laboratory test that is not performed in-house, but is delivered
to a different laboratory to be performed, often due to its
complexity, is known as a:
a. send out
, b. reference test
c. routine test
e. mailed test - correct answer- a. send out
A laboratory that handles microorganisms that present
moderate hazards to laboratory staff and environment, including
Staphylococcus aureus or Zika virus, would be assigned which of
the following biosafety levels:
a. BSL-1
b. BSL-2
c. BSL-3
d. BLS-4 - correct answer- b. BSL-2
A new trend in laboratory organization is what is known as the
Core Laboratory. This department generally consists of the
following departments:
a. Hemostasis (Coagulation) and Urinalysis
b. Microbiology and Immunohematology
VERIFIED ANSWERS; ALREADY GRADED A
1:10 or 1:100 bleach solutions are a common disinfectant in
laboratories. How often should these bleach solutions be
remade in order to ensure their chlorine levels remain
adequate?
a. Hourly
b. Daily
c. Weekly
d. Monthly - correct answer- c. Weekly
A 50 mL volume being held in an Erlenmeyer flask with a
tolerance of 0.05 mL is actually more accurately described as :
a. 45 mL - 55 mL
b. 49.95 mL - 50.05 mL
c. 50 mL - 50.05 mL
d. 49.5 mL - 50.5 mL - correct answer- b. 49.95 mL
- 50.05 mL
,A chemical inventory, safety data sheets, labeling requirements,
engineering controls, and waste removal and disposal are all a
part of what OSHA mandate?
a. Chemical Hygiene Plan
b. Blood Borne Pathogen Plan
c. Core Standards
d. Hazard Communication Standards - correct answer-
a. Chemical Hygiene Plan
A class C fire is a fire caused by:
a. Electrical equipment
b. Flammable liquid and gases
c. Ordinary combustibles
d. A class C fire cannot be extinguished - correct answer-
a. Electrical equipment
A collection of tests ordered at the same time and under a single
order is known as a(n):
,a. Analyte
b. Test Selection
c. Test Panel
d. Testing Algorithm - correct answer- c. Test
Panel
A graphical representation of known standard or calibrator
points is known as a __________?
a. Expected Value
b. Standard/Calibration Curve
c. Reference Range
d. Calibration Interval - correct answer- b.
Standard/Calibration Curve
A laboratory test that is not performed in-house, but is delivered
to a different laboratory to be performed, often due to its
complexity, is known as a:
a. send out
, b. reference test
c. routine test
e. mailed test - correct answer- a. send out
A laboratory that handles microorganisms that present
moderate hazards to laboratory staff and environment, including
Staphylococcus aureus or Zika virus, would be assigned which of
the following biosafety levels:
a. BSL-1
b. BSL-2
c. BSL-3
d. BLS-4 - correct answer- b. BSL-2
A new trend in laboratory organization is what is known as the
Core Laboratory. This department generally consists of the
following departments:
a. Hemostasis (Coagulation) and Urinalysis
b. Microbiology and Immunohematology
