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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Electrical burns can have small amounts of skin damage, but more extensive damage beneath the skin.
This response is the best choice because it educates the client about the potential for deeper tissue damage associated with electrical burns. It acknowledges that while the burn on the skin may appear small, the damage underneath could be more extensive, affecting muscles, nerves, and blood vessels.
B. Electrical burns commonly cause reddened/purplish skin without blistering.
This statement is not the best response because it focuses solely on the appearance of the skin without addressing the potential for deeper tissue damage. While it is true that electrical burns can present with reddened or purplish skin without blistering, this response does not provide comprehensive information about the nature and severity of electrical burns.
C. Electrical burns typically are minor.
This response is incorrect because it downplays the seriousness of electrical burns. While some electrical burns may indeed be minor, others can cause significant tissue damage and complications. It's important for the nurse to educate the client about the range of severity that electrical burns can present.
D. Electrical burns usually cause much more skin damage than what can be seen on your skin.
This statement is partially accurate but does not provide as much information as choice A. While it acknowledges that electrical burns can cause more damage than what is visible on the skin's surface, it doesn't emphasize the potential for deeper tissue damage as effectively as choice A does.
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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