#1
Which of the following laboratory tests measures blood sugar levels?
Glucose Tolerance Test (GTT)
ExplanationMeasures the body's ability to metabolize glucose.
#2
What is the primary function of a hemocytometer in the laboratory?
To count white blood cells
ExplanationUsed to manually count cells in a known volume of liquid.
#3
Which of the following laboratory tests is used to assess kidney function?
Serum Creatinine Test
ExplanationMeasures the level of creatinine in the blood, indicating kidney function.
#4
What is the primary purpose of a centrifuge in a laboratory?
To separate components of a mixture based on their size and density
ExplanationUtilizes centrifugal force to separate substances by density.
#5
What is the primary function of a spectrophotometer in a laboratory?
To measure the amount of light absorbed by a substance
ExplanationQuantifies the amount of light absorbed by a substance at different wavelengths.
#6
Which of the following laboratory techniques is used to separate components of a mixture based on their size and charge?
Electrophoresis
ExplanationSeparates molecules based on size and charge by applying an electric field.
#7
What is the normal range for blood pH in humans?
7.35 - 7.45
ExplanationOptimal pH range for blood to maintain normal physiological function.
#8
Which of the following laboratory tests is used to diagnose iron deficiency anemia?
Ferritin Test
ExplanationMeasures the level of ferritin, a protein that stores iron in the body.
#9
Which of the following laboratory tests is used to detect antibodies in response to a particular antigen?
ELISA (Enzyme-Linked Immunosorbent Assay)
ExplanationDetects and quantifies antibodies or antigens in a sample.
#10
In microbiology, which staining technique is commonly used to differentiate between Gram-positive and Gram-negative bacteria?
Gram Stain
ExplanationDistinguishes bacteria based on cell wall composition.
#11
Which of the following is a method of sterilization commonly used in the laboratory to kill microorganisms?
Autoclaving
ExplanationUses high-pressure steam to eliminate microorganisms.
#12
Which of the following laboratory tests is used to diagnose hepatitis B infection?
Hepatitis B Surface Antigen (HBsAg) Test
ExplanationDetects the presence of HBsAg protein, indicating hepatitis B infection.
#13
Which of the following laboratory techniques is used to amplify DNA sequences?
Polymerase Chain Reaction (PCR)
ExplanationAmplifies specific DNA sequences for analysis.
#14
Which of the following laboratory tests is used to detect antibodies against the hepatitis C virus?
Hepatitis C Antibody Test
ExplanationIdentifies antibodies produced in response to hepatitis C infection.
#15
Which of the following laboratory tests is used to measure the level of creatine kinase in the blood?
Creatine Kinase (CK) Test
ExplanationAssesses muscle damage or heart attack by measuring CK levels.