The nurse is caring for a client with a permanent pacemaker. The client's monitor shows a pacemaker spike prior to the p wave. What would be the nurse's best action?

Increase the pacemaker sensitivity

Document that the pacemaker is regular

Set the pacemaker to the asynchronous mode

Document that the atria are being paced

Answer and Explanation

The Correct Answer is D

A. Increase the pacemaker sensitivity: Adjusting pacemaker sensitivity is a technical function typically managed by a cardiologist or device technician. There is no indication from the information provided that the pacemaker is under- or over-sensing, so no adjustment is warranted.

B. Document that the pacemaker is regular: While the pacemaker may be functioning regularly, this statement is vague and does not accurately describe the observed pacing activity. The key observation is the spike occurring before the P wave, which requires more specific documentation.

C. Set the pacemaker to the asynchronous mode: Asynchronous pacing means the pacemaker fires at a set rate regardless of the patient's intrinsic rhythm and is generally reserved for specific situations such as during surgery or when interference with sensing is suspected. There is no evidence of pacemaker malfunction or need to override sensing in this scenario.

D. Document that the atria are being paced: A pacemaker spike immediately before the P wave indicates atrial pacing. This means the pacemaker is stimulating the atria, leading to atrial depolarization. This is the appropriate interpretation and should be documented clearly.

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Correct Answer is D

Explanation

A. Dopamine and 50% non-rebreather mask: Dopamine is a vasopressor used in hypotension or shock, an inotropic agent used to improve cardiac output, not typically first-line for anxiety or respiratory distress. A non-rebreather mask may provide high oxygen levels but can be overwhelming and exacerbate anxiety if not well tolerated.

B. Nesiritide IV infusion and digoxin PO: Nesiritide is a vasodilator which may reduce preload and afterload in heart failure, and digoxin is a positive inotrope that can improve contractility, but neither offers rapid relief for anxiety and dyspnea. These medications have slower onset and are not used primarily for symptom control in acute distress.

C. Diazepam IV push and metoprolol IV: While diazepam may reduce anxiety, it can depress respiration, which is dangerous in decompensated heart failure with potential pulmonary edema. Metoprolol reduces heart rate and contractility and must be used cautiously in acute settings.

D. Morphine IV and oxygen 2 liters via nasal cannula: Morphine reduces preload, anxiety, and the sensation of breathlessness, making it ideal in acute decompensated heart failure. Low-flow oxygen improves oxygenation without overwhelming the patient. This combination directly targets both physiologic and psychological distress.

A. Assessing the incision for any redness, swelling, or discharge B. Applying wet-to-dry dressings every 4 hours to the insertion site C. Reinforcing the pressure dressing as needed D. Encouraging range-of-motion exercises of the involved arm

Correct Answer is A

Explanation

A. Assessing the incision for any redness, swelling, or discharge: At 3 weeks post pacemaker insertion, the wound should be well into the healing process. Monitoring for signs of infection—such as redness, swelling, or discharge—remains a top priority to identify delayed wound complications like infection or erosion.

B. Applying wet-to-dry dressings every 4 hours to the insertion site: Wet-to-dry dressings are used for debridement of open wounds with significant drainage and necrotic tissue, not for healing surgical incisions. By 3 weeks post-procedure, the site should be dry and closed; such dressing changes would be inappropriate and potentially increase risk of infection.

C. Reinforcing the pressure dressing as needed: Pressure dressings are typically used in the immediate post-operative period to control bleeding and are not maintained weeks after insertion. Reinforcing one at this stage would suggest poor wound healing or inappropriate post-op management.

D. Encouraging range-of-motion exercises of the involved arm: While regaining full range of motion is important after pacemaker insertion, it's usually initiated gradually. Gentle arm movement may be resumed after a few weeks but early aggressive range-of-motion exercises are discouraged immediately post-insertion to prevent lead dislodgement. At the 3-week mark, movement should be cautious and per the provider’s specific clearance.

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The nurse is caring for a client with a permanent pacemaker. The client's monitor shows a pacemaker spike prior to the p wave. What would be the nurse's best action?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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