A nurse is reviewing the laboratory results of a client who is taking a loop diuretic and notes the client's potassium level is 3.0 mEq/L. Which of the following physiological responses should the nurse expect related to the client's hypokalemia?

Choice A rationale:

The nurse should instruct the client to consume foods rich in potassium because furosemide, a loop diuretic, can lead to potassium depletion. By consuming potassium-rich foods, the client can help maintain proper electrolyte balance. Common potassium-rich foods include bananas, oranges, potatoes, and leafy greens. It is crucial to prevent hypokalemia, as it can result in adverse effects such as cardiac dysrhythmias and muscle weakness.

Choice B rationale:

Taking furosemide at bedtime is not necessary, and it is not a standard instruction. Furosemide is usually taken in the morning to avoid nocturia, as it increases urine output. This option does not address the primary concern of managing pulmonary edema and the potential electrolyte imbalances associated with furosemide use.

Choice C rationale:

Taking aspirin for headaches is not relevant to the client's condition of pulmonary edema or the use of furosemide. This choice does not provide valuable guidance to the client and may lead to unnecessary medication use.

Choice D rationale:

Expecting swelling in the hands and feet is not an appropriate instruction for a client with pulmonary edema. The goal of furosemide therapy is to reduce edema and fluid retention, not to expect or tolerate swelling. This option does not contribute to the client's well-being and recovery.

The correct answer is: C.

Choice A reason: A pH of 7.50 and HCO3 of 31 mm Hg suggest a metabolic alkalosis due to the high bicarbonate level. However, during a panic attack, hyperventilation leads to respiratory alkalosis, not metabolic, due to the excessive exhalation of CO2, which is not consistent with this option.

Choice B reason: A pH of 7.30 and HCO3 of 19 mm Hg indicate a metabolic acidosis due to the low bicarbonate level. This is not typically associated with hyperventilation during a panic attack, which usually causes respiratory alkalosis, characterized by a decrease in CO2 levels and an increase in pH.

Choice C reason: A pH of 7.47 and PaCO2 of 31 mm Hg are indicative of respiratory alkalosis, which is expected during hyperventilation as a result of a panic attack. Hyperventilation causes a decrease in carbon dioxide (PaCO2) levels, leading to an increase in pH. The normal ranges for arterial blood gases are: pH 7.35-7.45, PaCO2 35-45 mm Hg, and HCO3 22-26 mEq/L.

Choice D reason: A pH of 7.32 and PaCO2 of 50 mm Hg suggest respiratory acidosis due to the elevated PaCO2 level. This would be more consistent with hypoventilation, which is not the case during a panic attack where hyperventilation occurs.