A nurse is collecting data from a client whose arterial blood gas values reveal a pH of 7.24, PaCO2 of 53, and an HCO3 of 24. The nurse should prepare to treat the client for which of the following acid-base imbalances?

a. Restrict oral fluids to 800 to 1,000 mL/day: Hyponatremia is a characteristic finding in SIADH, and fluid restriction is a key intervention to correct the imbalance.

b. Maintain an IV of 0.45% sodium chloride: Infusing hypertonic (3%) saline may be indicated in severe cases of hyponatremia, but the initial step is fluid restriction.

c. Ensure the client receives a 2 g/day sodium diet: Dietary sodium restriction is not the primary intervention for SIADH. Fluid restriction is more critical.

d. Administer desmopressin acetate 0.2 mg orally: Desmopressin acetate is an antidiuretic

hormone and would exacerbate the retention of water, further decreasing sodium levels. It is not the appropriate intervention for this client.

a. Decreased calcium level: NG tube drainage is more likely to result in hypokalemia (decreased potassium) than hypocalcemia (decreased calcium).

b. Decreased potassium level: NG tube drainage, which contains stomach contents, can lead to loss of potassium. Monitoring for hypokalemia is crucial as it can result in cardiac dysrhythmias.

c. Elevated magnesium level: NG tube drainage is not typically associated with an increase in magnesium levels.

d. Elevated sodium level: NG tube drainage may contribute to sodium loss, leading to hyponatremia, rather than hypernatremia.