A client with a history of heart failure arrives at the emergency department describing an onset of fatigue and weakness.
The client has been taking spironolactone 50 mg tablets PO every day.
The nurse receives a report from the lab that the client has a serum potassium level of 6.2 mEq/L (6.2 mmol/L). Which intervention is most important for the nurse to implement?
Compare muscle strength bilaterally.
Observe color and amount of urine.
Determine apical pulse rate and rhythm.
Assess strength of deep tendon reflexes.
The Correct Answer is C
Choice A rationale
Comparing muscle strength bilaterally is important in assessing overall physical health and detecting any potential neuromuscular disorders. However, in the context of a client with a history of heart failure and elevated potassium levels, this would not be the most critical intervention. High potassium levels can lead to hyperkalemia, which can cause serious heart rhythm disturbances.
Choice B rationale
Observing the color and amount of urine can provide valuable information about the client’s hydration status and kidney function. In the case of heart failure, monitoring urine output can help assess the effectiveness of diuretic therapy and the progression of the disease. However, it is not the most immediate concern given the client’s high potassium levels.
Choice C rationale
Determining the apical pulse rate and rhythm is the most important intervention in this scenario. A serum potassium level of 6.2 mEq/L is higher than the normal range (3.5-5.0 mEq/L) and can cause life-threatening heart rhythm abnormalities. Therefore, the nurse should prioritize assessing the client’s heart rhythm to detect any abnormalities caused by this electrolyte imbalance.
Choice D rationale
Assessing the strength of deep tendon reflexes can help identify changes in neuromuscular function and is often used in neurological assessments. However, it is not the most critical intervention in the context of elevated potassium levels and heart failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Paying close attention to the client’s account of the event is important, but it is not the most crucial intervention. The nurse should listen empathetically and nonjudgmentally to the client’s account, but this should not take precedence over ensuring the client’s physical well- being and preserving evidence.
Choice B rationale
Reporting the incident to the university’s security department is not the most crucial intervention. While it is important to report the incident to the appropriate authorities, the nurse’s primary responsibility is to the client. Ensuring the client’s physical well-being and preserving evidence should take precedence.
Choice C rationale
Preventing the client from showering until all evidence is collected is the most crucial intervention. Showering can destroy valuable physical evidence that can be used in the investigation and prosecution of the crime.
Choice D rationale
Ascertaining the client’s personal reaction to the reported rape is important, but it is not the most crucial intervention. The nurse should provide emotional support and refer the client to counseling services, but this should not take precedence over ensuring the client’s physical well-being and preserving evidence.
Correct Answer is ["B","C","D"]
Explanation
Choice A rationale
A productive cough is not a specific indicator of hypoxia. It could be a symptom of many conditions, including a common cold, flu, or other respiratory tract infections.
Choice B rationale
A respiratory rate of 28 breaths/minute is higher than the normal range (12-20 breaths/minute for adults), indicating that the patient may be trying to increase oxygen intake and eliminate carbon dioxide due to hypoxia.
Choice C rationale
An oxygen saturation of 90% on room air is lower than the normal range (95%-100%). This indicates that the patient’s blood is not carrying as much oxygen as it should, which is a sign of hypoxia.
Choice D rationale
A heart rate of 101 beats/minute is higher than the normal range (60-100 beats/minute for adults). This could be a response to hypoxia as the body tries to deliver more oxygen to the tissues.
Choice E rationale
A capillary refill of 4 seconds is slightly longer than the normal range (less than 2 seconds). While this could indicate poor peripheral circulation, it is not a specific or direct indicator of hypoxia.
Choice F rationale
A blood pressure of 145/89 mm Hg is higher than the normal range (less than 120/80 mm Hg). While hypertension could be related to many factors, it is not a specific indicator of hypoxia.
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