#1
Which of the following blood types is considered the universal donor?
O-
ExplanationO- blood lacks A, B, and Rh antigens, making it compatible with all blood types.
#2
Which imaging technique uses strong magnetic fields and radio waves to generate detailed images of the body's internal structures?
Magnetic resonance imaging (MRI)
ExplanationMRI provides high-resolution images without radiation, aiding in diagnosing various medical conditions.
#3
What is the purpose of the Apgar score in newborns?
Assessing the overall well-being of the newborn
ExplanationThe Apgar score evaluates a newborn's vital signs, providing a quick assessment of their overall health and well-being.
#4
Which laboratory test is commonly used to assess thyroid function?
Thyroid-stimulating hormone (TSH)
ExplanationTSH levels indicate the thyroid's activity, helping diagnose thyroid disorders such as hypothyroidism or hyperthyroidism.
#5
What is the primary purpose of a fecal occult blood test?
To detect blood in the stool
ExplanationFecal occult blood tests identify hidden blood in the stool, helping in the early detection of gastrointestinal bleeding or colorectal cancer.
#6
What is the primary function of the enzyme amylase in the body?
Digestion of carbohydrates
ExplanationAmylase breaks down carbohydrates into simpler sugars for absorption in the digestive system.
#7
Which laboratory test is commonly used to diagnose diabetes?
Hemoglobin A1c
ExplanationHemoglobin A1c reflects average blood glucose levels over the past 2-3 months, aiding in diabetes diagnosis and management.
#8
What is the purpose of a sputum culture in a medical laboratory?
To identify bacterial infections in the respiratory system
ExplanationSputum cultures help identify specific bacteria causing respiratory infections, guiding effective treatment.
#9
Which of the following is an autoimmune disorder characterized by inflammation of the joints?
Rheumatoid arthritis
ExplanationRheumatoid arthritis involves the immune system mistakenly attacking the joints, causing inflammation and joint damage.
#10
Which of the following is a common coagulation test used to assess blood clotting factors?
Prothrombin time (PT)
ExplanationPT measures the time it takes for blood to clot, helping assess the functioning of various clotting factors.
#11
What is the normal range for the pH of human blood?
7.0 - 7.5
ExplanationThe pH range ensures proper functioning of enzymes and proteins in the blood, maintaining homeostasis.
#12
In a urinalysis, what does the presence of ketones indicate?
Diabetic ketoacidosis
ExplanationKetones in urine signal inadequate insulin, leading to fat breakdown and acidic ketone production, a concern in diabetes.
#13
What is the primary purpose of a Pap smear?
To screen for cervical cancer
ExplanationPap smears detect abnormal cervical cells, aiding in the early diagnosis and prevention of cervical cancer.
#14
Which blood component is responsible for carrying oxygen to tissues and organs?
Red blood cells
ExplanationRed blood cells contain hemoglobin, enabling the transport of oxygen from the lungs to tissues throughout the body.
#15
Which diagnostic test is commonly used to detect Helicobacter pylori infection in the stomach?
Urea breath test
ExplanationThe urea breath test detects the presence of Helicobacter pylori by measuring the production of urease enzyme in the stomach.