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Following cardiac resuscitation, a patient has been placed in a state of mild hypothermia before being transferred to the cardiac intensive care unit. The nurses assessment reveals that the patient is experiencing neuromuscular paralysis. How should the nurse best respond?
- A. Administer hypertonic IV solution.
- B. Administer a bolus of warmed normal saline.
- C. Reassess the patient in 15 minutes.
- D. Document this as an expected assessment finding.
Correct Answer: D
Rationale: The nurse caring for a patient with hypothermia (passive or induced) needs to monitor for appropriate level of cooling, sedation, and neuromuscular paralysis to prevent seizures; myoclonus; and shivering. Neuromuscular paralysis is an expected finding and does not necessitate further interventions.
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The nurse is caring for an adult patient who has gone into ventricular fibrillation. When assisting with defibrillating the patient, what must the nurse do?
- A. Maintain firm contact between paddles and patient skin.
- B. Apply a layer of water as a conducting agent.
- C. Call all clear once before discharging the defibrillator.
- D. Ensure the defibrillator is in the sync mode.
Correct Answer: A
Rationale: When defibrillating an adult patient, the nurse should maintain good contact between the paddles and the patients skin to prevent arcing, apply an appropriate conducting agent (not water) between the skin and the paddles, and ensure the defibrillator is in the nonsync mode. Clear should be called three times before discharging the paddles.
During a CPR class, a participant asks about the difference between cardioversion and defibrillation. What would be the instructors best response?
- A. Cardioversion is done on a beating heart; defibrillation is not.
- B. The difference is the timing of the delivery of the electric current.
- C. Defibrillation is synchronized with the electrical activity of the heart, but cardioversion is not.
- D. Cardioversion is always attempted before defibrillation because it has fewer risks.
Correct Answer: B
Rationale: One major difference between cardioversion and defibrillation is the timing of the delivery of electrical current. In cardioversion, the delivery of the electrical current is synchronized with the patients electrical events; in defibrillation, the delivery of the current is immediate and unsynchronized. Both can be done on a beating heart (i.e., in a dysrhythmia). Cardioversion is not necessarily attempted first.
The ED nurse is caring for a patient who has gone into cardiac arrest. During external defibrillation, what action should the nurse perform?
- A. Place gel pads over the apex and posterior chest for better conduction.
- B. Ensure no one is touching the patient at the time shock is delivered.
- C. Continue to ventilate the patient via endotracheal tube during the procedure.
- D. Allow at least 3 minutes between shocks.
Correct Answer: B
Rationale: In external defibrillation, both paddles may be placed on the front of the chest, which is the standard paddle placement. Whether using pads or paddles, the nurse must observe two safety measures. First, maintain good contact between the pads or paddles and the patients skin to prevent leaking. Second, ensure that no one is in contact with the patient or with anything that is touching the patient when the defibrillator is discharged, to minimize the chance that electrical current will be conducted to anyone other than the patient. Ventilation should be stopped during defibrillation.
The staff educator is teaching a CPR class. Which of the following aspects of defibrillation should the educator stress to the class?
- A. Apply the paddles directly to the patients skin.
- B. Use a conducting medium between the paddles and the skin.
- C. Always use a petroleum-based gel between the paddles and the skin.
- D. Any available liquid can be used between the paddles and the skin.
Correct Answer: B
Rationale: Use multifunction conductor pads or paddles with a conducting medium between the paddles and the skin (the conducting medium is available as a sheet, gel, or paste). Do not use gels or pastes with poor electrical conductivity.
An ECG has been ordered for a newly admitted patient. What should the nurse do prior to electrode placement?
- A. Clean the skin with providone-iodine solution.
- B. Ensure that the area for electrode placement is dry.
- C. Apply tincture of benzoin to the electrode sites and wait for it to become tacky.
- D. Gently abrade the skin by rubbing the electrode sites with dry gauze or cloth.
Correct Answer: D
Rationale: An ECG is obtained by slightly abrading the skin with a clean dry gauze pad and placing electrodes on the body at specific areas. The abrading of skin will enhance signal transmission. Disinfecting the skin is unnecessary and conduction gel is used.