#1
Which of the following is a common safety precaution in a medical laboratory?
Wearing appropriate personal protective equipment (PPE)
ExplanationPPE protects against hazards like chemicals and biological materials.
#2
What is the purpose of a fume hood in a laboratory?
To ventilate harmful fumes
ExplanationFume hoods prevent exposure to dangerous airborne substances.
#3
Which of the following is NOT a correct step in handling biological samples?
Reusing disposable gloves
ExplanationReusing gloves increases the risk of contamination.
#4
What does the acronym MSDS stand for in laboratory safety?
Material Safety and Data Sheet
ExplanationMSDS provides information on hazards and handling precautions for chemicals.
#5
What is the purpose of a biosafety cabinet in a laboratory?
To protect the user and environment from biohazards
ExplanationBiosafety cabinets provide a controlled environment for handling hazardous materials.
#6
Which of the following is a recommended practice for proper specimen collection?
Labeling containers after specimen collection
ExplanationLabeling ensures proper identification and tracking of specimens.
#7
Which of the following is NOT a common laboratory test for diagnosing infectious diseases?
Blood glucose measurement
ExplanationBlood glucose measurement is not specific to infectious diseases.
#8
What is the correct procedure for disposing of biohazardous waste in a laboratory?
Segregating it into appropriate containers and labeling them as biohazardous
ExplanationProper disposal minimizes risks of exposure and environmental contamination.
#9
Which of the following is a primary function of a centrifuge in a medical laboratory?
Separating components of a mixture based on density
ExplanationCentrifuges separate substances by spinning at high speeds.
#10
In laboratory testing, what does the term 'hemolysis' refer to?
The breakdown of red blood cells
ExplanationHemolysis affects sample integrity and can interfere with test results.
#11
What is the primary purpose of quality control measures in a medical laboratory?
To ensure accurate and reliable test results
ExplanationQuality control verifies the precision and accuracy of tests.
#12
What is the purpose of a calibration curve in laboratory instrumentation?
To determine the accuracy and precision of measurements
ExplanationCalibration curves establish the relationship between instrument readings and known values.
#13
What is the purpose of a chain of custody form in a laboratory setting?
To ensure the security and integrity of samples
ExplanationChain of custody forms track samples to maintain their integrity for legal purposes.
#14
Which of the following is NOT a characteristic of a Class II biological safety cabinet?
It recirculates air within the cabinet
ExplanationClass II biosafety cabinets maintain negative pressure and filter exhaust air.