Practice Quiz

NCLEX-RN

Category - Pharmacological

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A patient was rushed to an emergency room for digitalis toxicity. While stabilizing the patient’s blood pressure, the nurse notes rapid and irregular pulse rate. ECG shows ventricular tachycardia. The nurse anticipates the administration of:
  1. IV amiodarone
  2. IV lidocaine
  3. IV adenosine
  4. IV propanolol
Explanation
Answer: B - The drug of choice for digitalis-induced ventricular tachycardia is lidocaine IV. Be careful not to administer lidocaine that contains epinephrine since this can further agitate the heart. Amiodarone, propanolol and adenosine may be ordered in supraventricular tachyarrhythmias and atrial fibrillation. When administering an antiarrhythmic drug, the patient should be hooked to a cardiac monitor to detect possible hypotension and cardiac collapse.
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