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","C","D"]
Explanation
A. Blood pressure:
Monitoring blood pressure is a crucial aspect of evaluating fluid resuscitation in burn patients. Adequate fluid resuscitation should help maintain stable blood pressure levels within an acceptable range. Hypotension (low blood pressure) can indicate inadequate fluid resuscitation, leading to poor tissue perfusion and organ function. On the other hand, hypertension (high blood pressure) may suggest fluid overload, which can lead to complications such as pulmonary edema. Therefore, regular monitoring of blood pressure helps assess the effectiveness of fluid resuscitation and guides adjustments in fluid administration rates.
B. Bowel sounds:
While bowel sounds are important indicators of gastrointestinal motility and function, they are not directly used to evaluate the success of fluid resuscitation in burn patients. Bowel sounds may be assessed for other reasons, such as postoperative recovery or gastrointestinal conditions, but they do not provide specific information about fluid resuscitation status or tissue perfusion.
C. Level of consciousness:
Assessing the client's level of consciousness is crucial during fluid resuscitation for burns. Changes in consciousness, such as confusion, lethargy, or altered mental status, can indicate inadequate tissue perfusion and oxygenation. A clear and responsive level of consciousness suggests adequate fluid resuscitation and perfusion to vital organs, while alterations in consciousness may prompt further evaluation and adjustment of fluid resuscitation strategies.
D. Urine output:
Monitoring urine output is a key parameter in evaluating fluid resuscitation in burn patients. Adequate urine output (0.5 to 1 mL/kg/hr in adults) indicates sufficient renal perfusion and function, suggesting effective fluid resuscitation. Decreased urine output or oliguria may indicate inadequate fluid resuscitation, renal impairment, or hypovolemia, requiring reassessment and potential adjustments in fluid administration rates or type of fluids used.
E. Platelet count:
Platelet count is an important component of the complete blood count (CBC) and is used to assess clotting function and risk of bleeding. However, platelet count is not specifically used to evaluate the success of fluid resuscitation in burn patients. While clotting parameters may be monitored in burn patients, including platelet count, they are not direct indicators of fluid resuscitation status or tissue perfusion. Other laboratory parameters, such as hemoglobin, hematocrit, electrolyte levels, and arterial blood gases, may be monitored to assess the effectiveness of fluid resuscitation.
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.
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