What is the primary mechanism by which furosemide lowers KF's blood pressure?

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• 1. What is the primary mechanism by which furosemide lowers KF's blood pressure? Furosemide is a loop diuretic. It works by inhibiting the reabsorption of sodium and chloride in the thick ascending limb of the loop of Henle, leading to increased excretion of water and electrolytes. This reduces blood volume and, consequently, blood pressure.

  • The correct option is B. Increased water and Sodium excretion.

• 2. Which of the following is a common side effect of furosemide relevant to this patient's comorbidities? KF has a history of gout and type 2 diabetes. Furosemide can increase uric acid levels (hyperuricemia), which can exacerbate gout, and can also increase blood glucose levels.

  • The correct option is B. Hyperuricemia.

• 3. Which of the following drug interactions is most relevant for KF? KF takes antidiabetic medications. Furosemide can increase blood glucose levels, which can counteract the effects of antidiabetic drugs.

  • The correct option is A. Furosemide may reduce the efficacy of antidiabetic medications.

• 4. Why would you recommend KF to take furosemide in the morning and afternoon? Furosemide is a diuretic that increases urine production. Taking it in the morning and afternoon, rather than late in the evening, helps prevent frequent urination during the night (nocturia) and avoids disturbing sleep.

  • The correct option is B. To prevent nocturia and sleep disturbance.

• 5. Which monitoring parameters are most important for this patient on furosemide? Furosemide can cause electrolyte imbalances (e.g., hypokalemia, hyponatremia), increase uric acid (relevant for gout), and increase blood glucose (relevant for diabetes). Therefore, these parameters are crucial to monitor.

  • The correct option is A. Electrolytes, uric acid, and blood glucose.

• 6. Which electrolyte imbalance is most associated with furosemide use? Furosemide, a loop diuretic, causes significant loss of potassium, leading to hypokalemia. It also causes loss of sodium, chloride, and magnesium.

  • The correct option is B. Hypokalaemia.

• 7. Which of the following drugs belongs to the same class as furosemide? Furosemide is a loop diuretic.

  • A. Hydrochlorothiazide is a thiazide diuretic.
  • B. Spironolactone is a potassium-sparing diuretic (aldosterone antagonist).
  • C. Indapamide is a thiazide-like diuretic.
  • D. Amiloride is a potassium-sparing diuretic (ENaC inhibitor).
  • None of the provided options belong to the same pharmacological class (loop diuretics) as furosemide. Therefore, there is no correct answer among the given choices based on a strict classification.

• 8. Which of the following drugs will affect KF's cardiac output in management of his hypertension? Propranolol is a beta-blocker. Beta-blockers reduce heart rate and myocardial contractility, thereby decreasing cardiac output.

  • The correct option is C. Propranolol.

• 9. Which of the following drugs inhibits conversion of angiotensin I to angiotensin II in management of KF's condition? Drugs that inhibit the conversion of angiotensin I to angiotensin II are Angiotensin-Converting Enzyme (ACE) inhibitors. Enalapril is an ACE inhibitor.

  • The correct option is B. Enalapril.

• 10. Which antihypertensive agent can cause ankle edema as a side effect if given to KF? Calcium channel blockers, particularly dihydropyridines like amlodipine, are well-known for causing peripheral edema (e.g., ankle edema) due to their vasodilatory effects.

  • The correct option is C. Amlodipine.