Answer to Question 1
2, 4
Rationale 1: Beta blockers lower blood pressure, and can cause hypotension.
Rationale 2: Blockade of beta receptors in the heart can result in bradycardia, and hypotension can cause dizziness and possible fainting.
Rationale 3: Beta blockers slow heart rate, and can cause bradycardia.
Rationale 4: Blockade of beta receptors in the heart can result in bradycardia, and hypotension can cause dizziness and possible fainting.
Rationale 5: Beta blockers do not cause hyperkalemia.
Global Rationale: Blockade of beta receptors in the heart can result in bradycardia, and hypotension can cause dizziness and possible fainting. Beta blockers lower blood pressure, and can cause hypotension. Beta blockers slow heart rate, and can cause bradycardia. Beta blockers do not cause hyperkalemia.
Answer to Question 2
1, 2
Rationale 1: Sodium channel blockers are used to treat dysrhythmias.
Rationale 2: Potassium channel blockers are used to treat dysrhythmias.
Rationale 3:Magnesium channel blockers is incorrect because there is no such drug class.
Rationale 4:Angiotensin channel blockers is incorrect because there is no such drug class.
Rationale 5: Antihyperlipidemics are used to treat high cholesterol.
Global Rationale: Sodium channel blockers and potassium channel blockers are used to treat dysrhythmias. Magnesium channel blockers is incorrect because there is no such drug class. Angiotensin channel blockers is incorrect because there is no such drug class. Antihyperlipidemics are used to treat high cholesterol.