A nurse cares for a patient who has a serum potassium of 7.5 mEq/L and is exhibiting cardiovascular changes. Which should the nurse implement first?

Provide a heart healthy low potassium diet

Prepare to administer sodium polystyrene sulfate 15g by mouth

Prepare the patient for hemodialysis treatment

Prepare to administer dextrose 20% and 10 units of regular insulin IV push

Answer and Explanation

The Correct Answer is D

A. Provide a heart-healthy low-potassium diet:

While a heart-healthy low-potassium diet is essential for managing chronic hyperkalemia and preventing future occurrences, it is not the first intervention to implement in a patient with a serum potassium level of 7.5 mEq/L and exhibiting cardiovascular changes. The effects of dietary changes on serum potassium levels are gradual and may take days to have a significant impact. In an acute situation like this, immediate interventions are needed to rapidly lower potassium levels and address the associated cardiovascular risks.

B. Prepare to administer sodium polystyrene sulfate 15g by mouth:

Sodium polystyrene sulfate is a medication used to exchange sodium for potassium in the gastrointestinal tract, effectively lowering serum potassium levels over hours to days. While it is a valid treatment for hyperkalemia, its onset of action is not immediate enough to address the urgent cardiovascular changes seen in severe hyperkalemia. Therefore, it is not the first-line intervention in this scenario.

C. Prepare the patient for hemodialysis treatment:

Hemodialysis is an effective method for rapidly lowering serum potassium levels in cases of severe hyperkalemia. However, it is a more invasive and time-consuming procedure that requires preparation, including vascular access and dialysis setup. It is typically reserved for situations where other interventions have failed or in patients with severe or refractory hyperkalemia. In the context of this scenario, where the patient has a serum potassium level of 7.5 mEq/L and is exhibiting cardiovascular changes, hemodialysis may be considered if initial interventions are not successful, but it is not the first action to implement.

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Correct Answer is A

Explanation

A. Assess the patient’s respiratory rate, rhythm, depth:

This is the correct action to take first. Hypokalemia can lead to respiratory muscle weakness, which can result in respiratory compromise or failure. Assessing the patient's respiratory rate, rhythm, and depth will help determine if there are any signs of respiratory distress or impending respiratory failure.

B. Call the healthcare provider:

While it's important to involve the healthcare provider, especially if there is a significant change in the patient's condition, assessing the patient's immediate respiratory status takes priority to ensure prompt intervention if respiratory distress is present.

C. Document findings and monitor the patient:

Documenting findings and ongoing monitoring are essential steps, but they come after addressing the patient's immediate needs, such as assessing respiratory status in this case.

D. Measure the patient’s pulse and blood pressure:

While vital signs are important, they may not immediately address the potential respiratory compromise associated with hypokalemia-induced muscle weakness. Assessing respiratory status is more directly relevant to the observed change in handgrip strength.

A. increase the effectiveness of the skin graft. B. promote movement in the affected area. C. prevent infection and promote healing. D. promote suppuration of the wound.

Correct Answer is C

Explanation

A. Increase the effectiveness of the skin graft:

Debridement can indeed increase the effectiveness of a skin graft by preparing a clean, viable wound bed for grafting. Removing dead tissue and debris helps the skin graft adhere to healthy tissue and promotes successful graft take. However, this is not the primary purpose of debridement.

B. Promote movement in the affected area:

While debridement can indirectly contribute to promoting movement by improving wound healing and reducing pain, the primary purpose of debridement is not to promote movement in the affected area.

C. Prevent infection and promote healing:

This statement accurately reflects the primary purpose of debridement. By removing nonviable tissue, debris, and foreign material from the wound, debridement helps prevent infection by reducing the bacterial load and creating an environment conducive to healing. It also promotes granulation tissue formation and wound contraction, which are essential for wound healing.

D. Promote suppuration of the wound:

Suppuration refers to the formation and discharge of pus from a wound, often indicating infection. Debridement aims to remove necrotic tissue and prevent infection, so promoting suppuration is not a desired outcome of debridement.

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A nurse cares for a patient who has a serum potassium of 7.5 mEq/L and is exhibiting cardiovascular changes. Which should the nurse implement first?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assessing a patient with hypokalemia, she notes that the patient's handgrip strength has diminished since the previous assessment 1 hour ago. What action does the nurse take first?

Correct Answer is A

Explanation

The nurse debriding a burn wound explains that the purpose of debridement is to:

Correct Answer is C

Explanation

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