A nurse is caring for a client who reports heart palpitations. An ECG confirms the client is experiencing ventricular tachycardia (VT). The nurse should anticipate the need for taking which of the following actions?
Elective cardioversion
Defibrillation
CPR
Radiofrequency catheter ablation
The Correct Answer is A
The correct answer is: A. Elective cardioversion
Choice A reason:
Elective cardioversion is a medical procedure that is used to restore a normal heart rhythm in patients experiencing certain types of arrhythmias, including ventricular tachycardia (VT), when they are stable. It involves the delivery of a controlled electric shock to the heart, which is synchronized with the heart's electrical activity to convert the abnormal rhythm back to a normal sinus rhythm. This procedure is typically performed when VT is not causing hemodynamic instability and the patient is not in immediate danger.
Choice B reason:
Defibrillation is an emergency treatment for life-threatening cardiac arrhythmias, particularly ventricular fibrillation (VF) or pulseless ventricular tachycardia. It involves delivering a high-energy electric shock to the heart unsynchronized to the heart's electrical cycle, aiming to reset the heart's electrical state and allow it to reestablish an effective rhythm. In the scenario provided, where the patient is experiencing VT but not VF, defibrillation would not be the first line of action unless the VT deteriorates into VF or the patient becomes pulseless.
Choice C reason:
CPR, or cardiopulmonary resuscitation, is a lifesaving technique useful in many emergencies, including heart attack or near drowning, in which someone's breathing or heartbeat has stopped. In the case of VT, if the patient is conscious and has a pulse, CPR is not indicated. CPR would only be necessary if the patient's heart stops beating (cardiac arrest) as a result of the VT.
Choice D reason:
Radiofrequency catheter ablation is a procedure used to treat some types of arrhythmias, including VT, by destroying the area of heart tissue that is causing the abnormal heart rhythm. This treatment is generally considered when medication is ineffective or not tolerated, or in recurrent VT. It is not typically the first line of treatment in an acute setting where the patient is stable and experiencing VT.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: This is incorrect. Widening pulse pressure is not a sign of hypovolemic shock, but rather of increased intracranial pressure or aortic regurgitation. Hypovolemic shock causes narrowing pulse pressure due to decreased stroke volume and increased peripheral resistance.
Choice B Reason: This is correct. Increased heart rate is a sign of hypovolemic shock, as the body tries to compensate for the decreased blood volume and cardiac output by increasing the heart rate and contractility.
Choice C Reason: This is incorrect. Increased deep tendon reflexes are not a sign of hypovolemic shock, but rather of hyperreflexia or tetany. Hypovolemic shock causes decreased deep tendon reflexes due to reduced perfusion and oxygenation of the muscles and nerves.
Choice D Reason: This is incorrect. Pulse oximetry 96% is not a sign of hypovolemic shock, but rather of normal oxygen saturation. Hypovolemic shock causes decreased pulse oximetry due to hypoxia and impaired gas exchange.
Correct Answer is C
Explanation
Choice A: Removing the elastic bandages is not recommended. These bandages help slow the spread of venom by compressing the lymphatic vessels. Removing them could worsen the envenomation.
Choice B: This is incorrect. The nurse should not discharge the client, as they may develop serious complications from the snake bite, such as swelling, bleeding, infection, or shock. The client should be monitored closely and treated accordingly.
Choice C: This is the correct action. Antivenom treatment is crucial for serious snake envenomation. The sooner it can be administered, the better the outcome.
Choice D: While pain management is important, it is not the priority in this situation. Antivenom takes precedence over pain medication.

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