Free Questions and Answers for All Medical Students all over the World
Q– A patient with heart failure is prescribed a drug that inhibits the Na⁺/K⁺-ATPase pump, increasing intracellular calcium in cardiac myocytes. Which one of the following drugs is most likely responsible? A- Amiodarone B- Digoxin C- Diltiazem D- Verapamil Correct Answer B- Digoxin- Digoxin inhibits the Na⁺/K⁺-ATPase pump, increasing intracellular sodium. This reduces Na⁺/Ca²⁺ exchange, … Read more
Q- A patient is prescribed heparin. Which one of the following laboratory tests is used to monitor its effectiveness? A- Bleeding time B- International normalized ratio (INR) C- Platelet count D- Partial thromboplastin time (PTT) Q- Which one of the following types of lung cancer could be accompanied by Horner’s syndrome? A- Adenocarcinoma of … Read more
Q- A 40-year-old man presents with severe hypertension, palpitations, headaches, and diaphoresis. CT scan reveals an adrenal mass. What is the best preoperative management? A- Beta-blocker before alpha-blocker B- Immediate surgery without medications C- Intravenous nitroglycerin only D- Phenoxybenzamine before the beta-blocker Q- A 52-year-old woman presents with progressive fatigue and pruritus. Labs show … Read more
Q- A patient treated with amoxicillin develops a rash after taking the medication. What type of reaction is most likely? A- Type I hypersensitivity B- Type II hypersensitivity C- Type III hypersensitivity D- Type IV hypersensitivity Q- A patient taking NSAIDs develops decreased kidney function. What is the mechanism of this effect? A- Decreased … Read more
Q- A 45-year-old man presents with epigastric pain that improves with eating. Endoscopy reveals a duodenal ulcer. Which organism is most commonly responsible for this condition? A- Campylobacter jejuni B- Clostridioides difficile C- Helicobacter pylori D- Vibrio cholerae Q- A 70-year-old man presents with progressive difficulty initiating urination and a weak urinary stream. Biopsy … Read more
Q- A 68-year-old man presents with fever, productive cough, and confusion. Blood pressure is 82/50 mmHg despite receiving 2 liters of IV fluids. What is the next best step in management? A- Administer intravenous norepinephrine B- Begin oral antibiotics C- Obtain chest CT scan D- Start furosemide Q- A 73-year-old man presents with urinary … Read more