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Pharmacology and Therapeutics

1,699 Questions

Engage with critical pharmacology and therapeutics questions covering drug classifications and therapeutic mechanisms. Topics include chemical absorption, medication formulations, and pharmacogenomics. This collection is useful for students preparing for medical entrance, nursing, and science competitive examinations.

Chemical absorption routesDrug formulation typesMedication mechanismsEnzyme inhibitorsPharmacogenomic tests

Pharmacology and Therapeutics Questions

Multiple choice

When should you discard unused medication?

  1. After the expiration date

  2. When the medication changes color or consistency

  3. When the medication has been opened for more than a month

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Unused medication should be discarded after the expiration date, when the medication changes color or consistency, or when the medication has been opened for more than a month.

Multiple choice

Which of the following medications is used to treat fever in toddlers?

  1. Acetaminophen

  2. Ibuprofen

  3. Aspirin

  4. Benadryl
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Acetaminophen and Ibuprofen are commonly used to treat fever in toddlers.

Multiple choice

Which of the following is NOT a route of drug administration?

  1. Oral

  2. Intravenous

  3. Intramuscular

  4. Topical
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Topical is not a route of drug administration, but rather a method of applying a drug to the skin or mucous membranes.

Multiple choice

Which of the following is NOT a type of drug receptor?

  1. G-protein coupled receptors

  2. Ligand-gated ion channels

  3. Nuclear receptors

  4. Enzyme-linked receptors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Enzyme-linked receptors are not a type of drug receptor, but rather a type of enzyme that is activated by a drug.

Multiple choice

What is the term for the process by which a drug is converted into a more active form?

  1. Bioactivation

  2. Metabolism

  3. Excretion

  4. Distribution
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bioactivation is the process by which a drug is converted into a more active form, typically by enzymes in the liver.

Multiple choice

Which of the following is NOT a type of drug interaction?

  1. Synergism

  2. Antagonism

  3. Potentiation

  4. Metabolism
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Metabolism is not a type of drug interaction, but rather a process by which drugs are converted into more or less active forms.

Multiple choice

What is the term for the study of the relationship between drug concentration and its effects?

  1. Pharmacokinetics

  2. Pharmacodynamics

  3. Toxicology

  4. Clinical Trials
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pharmacodynamics is the study of the relationship between drug concentration and its effects.

Multiple choice

Which of the following is NOT a type of adverse drug reaction?

  1. Allergic reaction

  2. Idiosyncratic reaction

  3. Dose-dependent reaction

  4. Teratogenic reaction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Teratogenic reactions are not a type of adverse drug reaction, but rather a type of birth defect caused by exposure to a drug during pregnancy.

Multiple choice

Which of the following is NOT a type of drug dosage form?

  1. Tablet

  2. Capsule

  3. Injection

  4. Suppository
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Injection is not a type of drug dosage form, but rather a route of drug administration.

Multiple choice

Which of the following is NOT a type of drug metabolism enzyme?

  1. Cytochrome P450

  2. UDP-glucuronosyltransferases

  3. Glutathione S-transferases

  4. Acetyltransferases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Acetyltransferases are not a type of drug metabolism enzyme, but rather a type of enzyme that catalyzes the transfer of an acetyl group from one molecule to another.

Multiple choice

Which of the following is a beta-blocker commonly used to treat hypertension and angina pectoris?

  1. Atenolol

  2. Digoxin

  3. Amiodarone

  4. Verapamil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Atenolol is a beta-blocker that is commonly used to treat hypertension and angina pectoris. It works by blocking the effects of epinephrine and norepinephrine on beta-adrenergic receptors in the heart and blood vessels, leading to a decrease in heart rate, blood pressure, and myocardial oxygen demand.

Multiple choice

Which of the following is an ACE inhibitor commonly used to treat hypertension and heart failure?

  1. Lisinopril

  2. Metoprolol

  3. Diltiazem

  4. Warfarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lisinopril is an ACE inhibitor that is commonly used to treat hypertension and heart failure. It works by inhibiting the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This leads to a decrease in blood pressure and an improvement in heart function.

Multiple choice

Which of the following is a calcium channel blocker commonly used to treat hypertension and angina pectoris?

  1. Amlodipine

  2. Hydrochlorothiazide

  3. Digoxin

  4. Atenolol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amlodipine is a calcium channel blocker that is commonly used to treat hypertension and angina pectoris. It works by blocking the influx of calcium ions into the heart and blood vessel cells, leading to a decrease in heart rate, blood pressure, and myocardial oxygen demand.

Multiple choice

Which of the following is a diuretic commonly used to treat hypertension?

  1. Hydrochlorothiazide

  2. Metoprolol

  3. Amiodarone

  4. Warfarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrochlorothiazide is a diuretic that is commonly used to treat hypertension. It works by increasing the excretion of sodium and water from the body, leading to a decrease in blood volume and blood pressure.

Multiple choice

Which of the following is an antiarrhythmic drug commonly used to treat atrial fibrillation and atrial flutter?

  1. Amiodarone

  2. Digoxin

  3. Verapamil

  4. Lisinopril
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amiodarone is an antiarrhythmic drug that is commonly used to treat atrial fibrillation and atrial flutter. It works by prolonging the action potential duration and refractory period of the heart, making it less susceptible to arrhythmias.