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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

Which of the following is a digitalis glycoside commonly used to treat heart failure and atrial fibrillation?

  1. Digoxin

  2. Metoprolol

  3. Diltiazem

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

Digoxin is a digitalis glycoside that is commonly used to treat heart failure and atrial fibrillation. It works by inhibiting the sodium-potassium pump in the heart, leading to an increase in intracellular calcium and a stronger contraction of the heart muscle.

Multiple choice

Which of the following is an anticoagulant commonly used to prevent and treat blood clots?

  1. Warfarin

  2. Heparin

  3. Aspirin

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

Warfarin is an anticoagulant that is commonly used to prevent and treat blood clots. It works by inhibiting the synthesis of vitamin K-dependent clotting factors, leading to a decrease in the blood's ability to clot.

Multiple choice

Which of the following is an antiplatelet drug commonly used to prevent and treat blood clots?

  1. Aspirin

  2. Heparin

  3. Warfarin

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

Aspirin is an antiplatelet drug that is commonly used to prevent and treat blood clots. It works by inhibiting the aggregation of platelets, which are small blood cells that play a role in blood clotting.

Multiple choice

Which of the following is a lipid-lowering drug commonly used to treat hyperlipidemia?

  1. Atorvastatin

  2. Metformin

  3. Amiodarone

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

Atorvastatin is a lipid-lowering drug that is commonly used to treat hyperlipidemia. It works by inhibiting the enzyme HMG-CoA reductase, which is involved in the synthesis of cholesterol in the liver. This leads to a decrease in the levels of LDL cholesterol and triglycerides in the blood.

Multiple choice

Which of the following is a biguanide commonly used to treat type 2 diabetes?

  1. Metformin

  2. Insulin

  3. Glipizide

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

Metformin is a biguanide that is commonly used to treat type 2 diabetes. It works by decreasing the production of glucose in the liver and improving the sensitivity of cells to insulin, leading to a decrease in blood glucose levels.

Multiple choice

Which of the following is a sulfonylurea commonly used to treat type 2 diabetes?

  1. Glipizide

  2. Metformin

  3. Insulin

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

Glipizide is a sulfonylurea that is commonly used to treat type 2 diabetes. It works by stimulating the release of insulin from the pancreas, leading to a decrease in blood glucose levels.

Multiple choice

Which of the following is a thiazolidinedione commonly used to treat type 2 diabetes?

  1. Pioglitazone

  2. Metformin

  3. Insulin

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

Pioglitazone is a thiazolidinedione that is commonly used to treat type 2 diabetes. It works by improving the sensitivity of cells to insulin, leading to a decrease in blood glucose levels.

Multiple choice

Which of the following is an incretin mimetic commonly used to treat type 2 diabetes?

  1. Exenatide

  2. Metformin

  3. Insulin

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

Exenatide is an incretin mimetic that is commonly used to treat type 2 diabetes. It works by mimicking the effects of incretins, which are hormones that are released from the gut after a meal and stimulate the release of insulin from the pancreas. This leads to a decrease in blood glucose levels.

Multiple choice

Which of the following is a sodium-glucose cotransporter 2 (SGLT2) inhibitor commonly used to treat type 2 diabetes?

  1. Canagliflozin

  2. Metformin

  3. Insulin

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

Canagliflozin is a sodium-glucose cotransporter 2 (SGLT2) inhibitor that is commonly used to treat type 2 diabetes. It works by inhibiting the reabsorption of glucose in the kidneys, leading to an increase in the excretion of glucose in the urine and a decrease in blood glucose levels.

Multiple choice

Which of the following is a glucagon-like peptide-1 (GLP-1) receptor agonist commonly used to treat type 2 diabetes?

  1. Liraglutide

  2. Metformin

  3. Insulin

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

Liraglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist that is commonly used to treat type 2 diabetes. It works by mimicking the effects of GLP-1, which is a hormone that is released from the gut after a meal and stimulates the release of insulin from the pancreas and inhibits the release of glucagon from the pancreas. This leads to a decrease in blood glucose levels.

Multiple choice

Which technology is commonly used for the analysis of drug metabolism and pharmacokinetics?

  1. Mass spectrometry

  2. Chromatography

  3. Electrophoresis

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

Mass spectrometry is widely used for the analysis of drug metabolism and pharmacokinetics, allowing researchers to study the absorption, distribution, metabolism, and excretion of drugs in the body.

Multiple choice

What is the treatment for a poultry allergy or intolerance?

  1. Antihistamines

  2. Decongestants

  3. Steroids

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

All of the above medications can be used to treat a poultry allergy or intolerance.

Multiple choice

Which of the following is NOT a treatment for a poultry allergy?

  1. Antihistamines

  2. Decongestants

  3. Steroids

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

Immunotherapy is not a treatment for a poultry allergy.

Multiple choice

Which of the following medications is commonly used to treat mild to moderate Crohn's Disease?

  1. 5-Aminosalicylates (5-ASAs)

  2. Corticosteroids

  3. Immunomodulators

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

5-Aminosalicylates (5-ASAs) are commonly used to treat mild to moderate Crohn's Disease due to their ability to reduce inflammation in the digestive tract.

Multiple choice

What is the concentration of a solution that contains 50 mg of solute in 100 mL of solution?

  1. 0.5 mg/mL

  2. 5 mg/mL

  3. 50 mg/mL

  4. 500 mg/mL
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Concentration = (Mass of solute / Volume of solution) = (50 mg / 100 mL) = 5 mg/mL