A nurse is reviewing the laboratory results of a client who takes furosemide. Which of the following results should the nurse identify as the priority finding?
Phosphorus 4.5 mEq/L.
Potassium 2.9 mEq/L.
Calcium 8.2 mg/dL.
Sodium 145 mEq/L.
The Correct Answer is B
Choice A rationale:
A phosphorus level of 4.5 mEq/L falls within the normal range, which is typically between 2.5 to 4.5 mEq/L. Although it's essential to monitor phosphorus levels, it is not the priority finding in this scenario.
Choice B rationale:
A potassium level of 2.9 mEq/L is the priority finding. The normal range for potassium is typically between 3.5 to 5.0 mEq/L. A potassium level of 2.9 mEq/L indicates severe hypokalemia, which can lead to life-threatening cardiac arrhythmias and muscle weakness. Immediate intervention is necessary to address the potassium imbalance.
Choice C rationale:
A calcium level of 8.2 mg/dL falls within the normal range (typically 8.5 to 10.2 mg/dL). While calcium levels are essential to monitor, they do not take precedence over the critically low potassium level in this situation.
Choice D rationale:
A sodium level of 145 mEq/L falls within the normal range, which is usually around 135 to 145 mEq/L. Although monitoring sodium levels is important, it is not the priority finding when compared to the critically low potassium level.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
The correct answer is choices A, B, and D. Here are the rationales for each choice:
Choice A rationale:
Sweet potatoes are an excellent source of potassium. One medium sweet potato contains about 542 mg of potassium, making it a great option for a high-potassium diet.
Choice B rationale:
Bananas are well-known for their high potassium content. A medium banana provides approximately 451 mg of potassium, which is beneficial for maintaining proper muscle and nerve function.
Choice C rationale:
Grapes are not particularly high in potassium compared to other fruits. They contain some potassium, but not enough to be considered a significant source for a high-potassium diet.
Choice D rationale:
Watermelon is a good source of potassium. Two wedges of watermelon contain about 640 mg of potassium, making it a suitable choice for increasing potassium intake.
Correct Answer is B
Explanation
Choice B rationale:
The patient's tachycardia, pale, cool skin, and decreased urine output are signs of the body's natural compensatory mechanisms in response to fluid volume deficit. When the body
experiences a decrease in fluid volume, it tries to compensate by increasing heart rate (tachycardia) to maintain blood flow to vital organs and constricting blood vessels to preserve fluid and maintain blood pressure. Pale, cool skin is a result of vasoconstriction, and decreased urine output is a way the body conserves water during dehydration.
Choice A rationale:
Effects of rapidly infused intravenous fluids are not the cause of the patient's current findings. In fact, the nurse's notes indicate that the IV fluid therapy (0.9% sodium chloride) was initiated at 125 mL/hr, which is a relatively standard and cautious rate. Rapidly infused fluids could potentially cause fluid overload, but that is not the situation here.
Choice C rationale:
Pharmacological effects of a diuretic are not relevant to this patient's presentation. There is no mention of diuretic use in the nurse's notes, and the symptoms presented are more consistent with fluid volume deficit and dehydration rather than diuretic use.
Choice D rationale:
Cardiac failure is not the correct answer, as there is no indication of heart failure in the patient's presentation or nurse's notes. The symptoms and findings described are more indicative of fluid volume deficit, which is not synonymous with cardiac failure.
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