Medical Quiz
Questions: 16 · 10 minutes
1. How do vaccines generally help protect against infectious diseases?
They eliminate every microbe already living in the body.
They create a physical barrier that stops pathogens entering the body.
They replace white blood cells that have been lost during illness.
They prepare the adaptive immune system to recognize specific pathogens or their components.
2. Which organ produces insulin, the hormone that helps regulate blood glucose?
Gallbladder
Spleen
Pancreas
Thyroid gland
3. A person with a known severe allergy develops trouble breathing and swelling of the lips after exposure to the allergen. What is the appropriate immediate response?
Wait quietly to see whether the swelling resolves without treatment.
Use only a cool compress and arrange a routine appointment.
Drink water and avoid moving until breathing returns to normal.
Use prescribed epinephrine promptly and call emergency services.
4. Which blood vessels directly supply oxygen-rich blood to the heart muscle itself?
Carotid arteries
Pulmonary veins
Coronary arteries
Venae cavae
5. A person with diabetes becomes shaky and sweaty and suspects low blood glucose. They are awake and can swallow safely. What is the best immediate step?
Choose only a high-fat snack because fat raises glucose most quickly.
Take extra insulin to stabilize the glucose level.
Take fast-acting glucose according to their care plan, then recheck and seek help if they do not improve.
Wait without eating or drinking until the symptoms pass.
6. An adult has mild dehydration after vomiting or diarrhea but is awake and able to drink. Which option is designed to replace both water and important salts?
A highly caffeinated energy drink
Undiluted fruit syrup
A protein shake
An oral rehydration solution
7. Why does washing hands thoroughly with soap and water help reduce the spread of many infections?
Washing loosens and removes microbes, oils, and contaminated material from the hands.
Soap permanently sterilizes the skin.
Warm water causes the immune system to produce antibodies immediately.
Soap prevents microbes from reaching the hands for the rest of the day.
8. A patient feels better after three days of an antibiotic prescribed for seven days. What should they do?
Continue exactly as prescribed unless the prescriber advises a change.
Stop immediately because symptom improvement proves the infection is gone.
Take the medicine only on days when symptoms return.
Reduce every remaining dose by half to limit exposure.
9. Why do heart rate and breathing rate normally increase during aerobic exercise?
To stop the muscles from using stored energy
To prevent blood from reaching the digestive system permanently
To lower the body's need for circulation
To deliver more oxygen to active tissues and remove more carbon dioxide
10. Someone with a typical viral cold asks why an antibiotic was not prescribed. Which explanation is most accurate?
Antibiotics target bacteria and do not treat the viruses that cause typical colds.
Antibiotics mainly reduce inflammation rather than target microbes.
Antibiotics work only after cold symptoms have lasted two weeks.
Antibiotics treat viruses only when they are taken before symptoms begin.
11. A person takes several medicines and is concerned that a new prescription may interact with them. Who is especially well placed to review the medication list and clarify interactions?
A fitness instructor
A pharmacist
A laboratory technician
An optometrist
12. A person suddenly develops facial drooping, weakness in one arm, and difficulty speaking. What is the most appropriate response?
Let the person rest and reassess after a full night's sleep.
Arrange a routine medical appointment within the next few days.
Call emergency services immediately because these can be signs of a stroke.
Offer food and wait to see whether the weakness passes.
13. Which statement best describes a major function of the kidneys?
They exchange oxygen and carbon dioxide in the lungs.
They filter blood, remove wastes, and help regulate fluid and electrolyte balance.
They store bile until it is needed for digestion.
They produce digestive enzymes for the small intestine.
14. A person feels well and assumes there is no reason to have their blood pressure measured. Why can routine measurement still be useful?
High blood pressure often causes no noticeable symptoms.
Blood pressure can be estimated accurately from a person's pulse alone.
Blood pressure remains unchanged throughout adult life.
A blood pressure reading can identify every form of heart disease.
15. What is the main function of hemoglobin in red blood cells?
Producing antibodies against infections
Carrying oxygen through the bloodstream
Digesting fats absorbed from food
Forming the body's major blood clots
16. Someone has a small thermal burn with intact skin and no signs of a severe injury. Which immediate first-aid measure is generally appropriate?
Press ice directly against the burn for several minutes.
Cool the area under cool running water and avoid applying ice directly.
Open any blisters so trapped heat can escape.
Cover the area with butter or cooking oil.