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 ["E"]
Explanation
A. Increased pulse rate:
This is a common manifestation of fluid overload. Excess fluid volume can lead to an increase in cardiac output, causing the heart to pump faster and resulting in an increased pulse rate.
B. Decreased blood pressure:
Fluid overload typically leads to increased blood volume, which can initially cause an increase in blood pressure. However, as fluid overload progresses, it can lead to fluid redistribution, venous congestion, and decreased systemic vascular resistance, ultimately resulting in decreased blood pressure.
C. Skeletal muscle weakness:
Skeletal muscle weakness is not a direct manifestation of fluid overload. It is more commonly associated with electrolyte imbalances, such as hypokalemia or hypomagnesemia, which can occur as a consequence of fluid shifts but are not specific to fluid overload itself.
D. Warm and pink skin:
Warm and pink skin is not typically associated with fluid overload. Instead, it is more indicative of adequate tissue perfusion and oxygenation. In fluid overload, skin changes may include edema, cool and clammy skin due to venous congestion, or signs of skin breakdown in areas of pressure.
E. Distended neck veins:
Distended neck veins, specifically jugular venous distention (JVD), are commonly seen in patients with fluid overload, especially if there is right-sided heart failure or increased central venous pressure. JVD is a result of increased venous return to the heart due to fluid accumulation.
Correct Answer is A
Explanation
A. Urine output is greater than 0.5 mL/kg/hr
During the fluid resuscitation phase of burn management, one of the primary goals is to maintain adequate tissue perfusion and organ function by ensuring sufficient fluid intake. The best method for assessing the results of fluid resuscitation is by monitoring urine output. A urine output of greater than 0.5 mL/kg/hr is indicative of adequate renal perfusion and kidney function, suggesting that fluid resuscitation is effective in maintaining tissue perfusion and preventing complications such as acute kidney injury.
B. Serum hemoglobin is 11 gm/dL
Serum hemoglobin levels can be affected by various factors, including fluid resuscitation, blood loss, and other medical conditions. While monitoring hemoglobin levels is important in overall patient assessment, it is not the best method specifically for assessing the results of fluid resuscitation during the initial phase of burn management.
C. Breath sounds are clear bilaterally
Clear bilateral breath sounds indicate adequate lung function and ventilation but may not directly reflect the effectiveness of fluid resuscitation in maintaining tissue perfusion. Lung sounds can be influenced by factors such as lung injury from smoke inhalation or mechanical ventilation settings, which may not correlate directly with fluid resuscitation outcomes.
D. Heart rate is 122/min
Heart rate can be influenced by various factors such as pain, stress, medications, and underlying medical conditions. While monitoring heart rate is important in assessing patient status, it is not the most reliable method for specifically evaluating the results of fluid resuscitation during the fluid resuscitation phase of burn management.
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