A nurse is reviewing the results of electrocardiography monitoring for a client who has atrial fibrillation. Which of the following findings should the nurse expect?

1:1 ratio of P to QRS waves

Absence of P waves

Prolonged PR interval

Prolonged QT interval

Answer and Explanation

The Correct Answer is B

A. 1:1 ratio of P to QRS waves: Atrial fibrillation is characterized by chaotic atrial electrical activity, leading to the absence of distinct P waves. A 1:1 ratio of P to QRS waves is seen in normal sinus rhythm, not atrial fibrillation.

B. Absence of P waves: Atrial fibrillation causes rapid, disorganized atrial depolarization, resulting in the loss of identifiable P waves on ECG. Instead, fibrillatory waves are seen, and the ventricular response is irregularly irregular.

C. Prolonged PR interval: The PR interval represents the time between atrial and ventricular depolarization. In atrial fibrillation, there is no coordinated atrial depolarization, making the PR interval unmeasurable rather than prolonged.

D. Prolonged QT interval: A prolonged QT interval is associated with conditions like electrolyte imbalances, certain medications, and congenital syndromes, but it is not a typical feature of atrial fibrillation.

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Correct Answer is A

Explanation

A. "I will hold my cellphone on the opposite side of the pacemaker.": Cellphones emit electromagnetic signals that can interfere with pacemaker function if held directly over the device. Keeping the phone on the opposite side minimizes the risk of interference and ensures proper pacemaker function.

B. "I can resume physical activity within 2 weeks.": Strenuous physical activity should be avoided for about 4-6 weeks to allow proper healing of the pacemaker site. Early resumption of activity can lead to lead dislodgement or complications.

C. "I need to cover my pacemaker with a dressing when I shower.": After the initial post-procedure period, there is no need to keep the pacemaker site covered while showering. The incision should be kept dry until it fully heals, but a permanent dressing is unnecessary.

D. "I should avoid using a microwave oven.": Modern pacemakers are shielded against microwave interference, making it safe to use a microwave. This is a common misconception, as older pacemakers were more susceptible to electrical interference.

A. Verify the solution with another RN prior to infusion. B. Monitor serum blood glucose during infusion.. C. Increase the rate of infusion if administration is delayed. D. Infuse 0.9% sodium chloride if the solution is not available. E. Obtain the client's weight daily.

Correct Answer is ["A","B","E"]

Explanation

A. Verify the solution with another RN prior to infusion: TPN is a high-risk therapy that requires verification by two RNs to ensure the correct formulation, preventing medication errors that could lead to severe complications.

B. Monitor serum blood glucose during infusion: TPN contains high concentrations of glucose, increasing the risk of hyperglycemia. Regular blood glucose monitoring helps detect imbalances and allows for timely intervention.

C. Increase the rate of infusion if administration is delayed: Increasing the infusion rate can lead to metabolic complications such as hyperglycemia and fluid overload. If TPN is delayed, the provider should be consulted for adjustments rather than increasing the rate independently.

D. Infuse 0.9% sodium chloride if the solution is not available: If TPN is unavailable, the correct alternative is an infusion of dextrose 10% in water (D10W) to prevent hypoglycemia, not 0.9% sodium chloride, which lacks glucose.

E. Obtain the client's weight daily: Daily weights help monitor fluid balance, nutritional status, and potential complications such as fluid retention or dehydration, ensuring proper TPN management.

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A nurse is reviewing the results of electrocardiography monitoring for a client who has atrial fibrillation. Which of the following findings should the nurse expect?

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