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Free U.S. Centers for Disease Control and Prevention (CDC) Laboratory Technician Exam Exam Questions and Answers
Last updated: May 12, 2025
Examtopics U.S. Centers for Disease Control and Prevention (CDC) Laboratory Technician Exam Prepaway Real Exam Questions and dumps free download
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U.S. Centers for Disease
Control and Prevention (CDC) Laboratory Technician Exam
#Question
What type of environment is necessary for culturing anaerobic bacteria?
A.
High humidity
B.
Low temperature
C.
Oxygen-rich
D.
Oxygen-free (anaerobic)
Correct Answer:
D
Anaerobic bacteria require an oxygen-free environment for growth, which is essential in their culture.
#Question
Why is it important to have a first-aid kit readily available in the lab?
A.
To reduce costs
B.
To impress visitors
C.
To comply with regulations
D.
To treat minor injuries
Correct Answer:
D
A first-aid kit is essential for treating minor injuries and ensuring the safety and well-being of laboratory personnel.
#Question
What is the primary function of a hemocytometer?
A.
To count cells
B.
To culture bacteria
C.
To analyze DNA
D.
To measure weight
Correct Answer:
A
A hemocytometer is specifically designed to count cells, allowing for accurate cell concentration measurements.
#Question
What is the recommended action if you find an unlabeled reagent in the lab?
A.
Dispose of it
B.
Verify with a supervisor
C.
Label it immediately
D.
Use it anyway
Correct Answer:
B
It's important to verify the contents of an unlabeled reagent with a supervisor before use to avoid errors.
#Question
Which of the following is essential for maintaining sterile conditions?
A.
Aseptic technique
B.
Low temperature
C.
High humidity
D.
Proper ventilation
Correct Answer:
A
Maintaining sterile conditions requires the use of aseptic techniques to prevent contamination.
#Question
What should be done immediately after a spill of biological material?
A.
Leave it for someone else
B.
Call a friend
C.
Ignore it
D.
Report it to a supervisor and clean it up
Correct Answer:
D
Reporting the spill and cleaning it up immediately minimizes risk and ensures safety protocols are followed.
#Question
What is the primary purpose of using a colorimeter in laboratory testing?
A.
To count cells
B.
To measure weight
C.
To sterilize samples
D.
To measure color intensity
Correct Answer:
D
A colorimeter measures the intensity of color in a solution, which can indicate concentration.
U.S. Centers for Disease Control and Prevention (CDC) Laboratory Technician Exam
#Question
What type of environment is necessary for culturing anaerobic bacteria?
A.
High humidity
B.
Low temperature
C.
Oxygen-rich
D.
Oxygen-free (anaerobic)
Correct Answer:
D
Anaerobic bacteria require an oxygen-free environment for growth, which is essential in their culture.
#Question
Why is it important to have a first-aid kit readily available in the lab?
A.
To reduce costs
B.
To impress visitors
C.
To comply with regulations
D.
To treat minor injuries
Correct Answer:
D
A first-aid kit is essential for treating minor injuries and ensuring the safety and well-being of laboratory personnel.
#Question
What is the primary function of a hemocytometer?
A.
To count cells
B.
To culture bacteria
C.
To analyze DNA
D.
To measure weight
Correct Answer:
A
A hemocytometer is specifically designed to count cells, allowing for accurate cell concentration measurements.
#Question
What is the recommended action if you find an unlabeled reagent in the lab?
A.
Dispose of it
B.
Verify with a supervisor
C.
Label it immediately
D.
Use it anyway
Correct Answer:
B
It's important to verify the contents of an unlabeled reagent with a supervisor before use to avoid errors.
#Question
Which of the following is essential for maintaining sterile conditions?
A.
Aseptic technique
B.
Low temperature
C.
High humidity
D.
Proper ventilation
Correct Answer:
A
Maintaining sterile conditions requires the use of aseptic techniques to prevent contamination.
#Question
What should be done immediately after a spill of biological material?
A.
Leave it for someone else
B.
Call a friend
C.
Ignore it
D.
Report it to a supervisor and clean it up
Correct Answer:
D
Reporting the spill and cleaning it up immediately minimizes risk and ensures safety protocols are followed.
#Question
What is the primary purpose of using a colorimeter in laboratory testing?
A.
To count cells
B.
To measure weight
C.
To sterilize samples
D.
To measure color intensity
Correct Answer:
D
A colorimeter measures the intensity of color in a solution, which can indicate concentration.
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A: Common US Federal Exams include:
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A: Preparation can include:
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