A client is prescribed sotalol (Betapace) for a cardiac dysrhythmia. The nurse knows that sotalol (Betapace) is used in this client because it performs which action?
1. Increases secretion of renin from the kidneys
2. Decreases sympathetic output from the vasomotor center in the brain
3. Slows the travel of impulse across the myocardium
4. Diminishes myocardial contractility
Correct Answer: 3
Rationale 1: Sotalol (Betapace) does not affect the secretion of renin from the kidneys.
Rationale 2: Sympathetic output from the vasomotor center in the brain is not decreased with sotalol (Betapace).
Rationale 3: Sotalol (Betapace) is a nonselective beta blocker used exclusively as an antidysrhythmic because it slows the action potential crossing the myocardium, allowing the heart to regain normal rhythm.
Rationale 4: Sotalol (Betapace) does not affect myocardial contractility.
Global Rationale: Sotalol (Betapace) is a nonselective beta blocker used exclusively as an antidysrhythmic because it slows the action potential crossing the myocardium, allowing the heart to regain normal rhythm. Sotalol (Betapace) does not affect the secretion of renin from the kidney or myocardial contractility. Sympathetic output from the vasomotor center in the brain is not decreased with sotalol (Betapace).
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