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Chapter 3: Problem 1

A client with hypertension has an order for furosemide. Which lab finding should be reported to the physician? A. Phosphorus \(2.5 \mathrm{mEq} / \mathrm{L}\) B. Potassium \(1.8 \mathrm{mEq} / \mathrm{L}\) C. Calcium \(9.4 \mathrm{mg} / \mathrm{dl}\) D. Magnesium \(2.4 \mathrm{mEq} / \mathrm{L}\)

Short Answer

Expert verified
Answer: B. Potassium (1.8 mEq / L)

Step by step solution

01

Know the normal values of the lab findings

To determine which lab findings should be reported to the physician, we must first understand the normal values for each of the lab findings mentioned: A. Phosphorus: \(2.5 - 4.5 \mathrm{mEq} / \mathrm{L}\) B. Potassium: \(3.5 - 5.0 \mathrm{mEq} / \mathrm{L}\) C. Calcium: \(8.6 - 10.2 \mathrm{mg} / \mathrm{dl}\) D. Magnesium : \(1.5 - 2.5 \mathrm{mEq} / \mathrm{L}\)
02

Understand the effect of Furosemide on the body

Furosemide is a loop diuretic that works by inhibiting the reabsorption of sodium and water, leading to increased urine output (diuresis). As a result, it can also cause the loss of other electrolytes, notably potassium.
03

Analyze the importance of the lab findings in the context of Furosemide

A low potassium level (hypokalemia) is a possible side effect of furosemide use. Hypokalemia can lead to potentially life-threatening complications such as muscle weakness, paralysis, and cardiac arrhythmias. This makes it essential for healthcare providers to monitor potassium levels in patients treated with furosemide.
04

Identify the lab finding that should be reported to the physician

Now that we know the normal values of the lab findings and the effects of furosemide, let's analyze each of the given lab findings: A. Phosphorus \(2.5 \mathrm{mEq} / \mathrm{L}\): This value is at the lower end of the normal range, but still within it. B. Potassium \(1.8 \mathrm{mEq} / \mathrm{L}\): This value falls below the normal range, indicating the presence of hypokalemia. C. Calcium \(9.4 \mathrm{mg} / \mathrm{dl}\): This value is within the normal range. D. Magnesium \(2.4 \mathrm{mEq} / \mathrm{L}\): This value is within the normal range as well. Therefore, the lab finding that should be reported to the physician is B. Potassium \(1.8 \mathrm{mEq} / \mathrm{L}\).

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