A nurse is assisting in the care of a male client who has a new prescription for furosemide. Which of the following client findings should the nurse identify as a contraindication to the administration of furosemide? Select the 3 findings the nurse should identify as a contraindication.

A. Potassium level: The potassium level of 3.2 mEq/L is below the normal range and indicates hypokalemia, which furosemide can worsen because it promotes potassium loss. Administering the medication now increases the risk of arrhythmias. Correcting the potassium imbalance is essential before giving a loop diuretic. B. Client verbal report: The client reports diarrhea, dry mouth, and excessive thirst, which suggest ongoing fluid depletion. Giving furosemide in this state can lead to further intravascular volume loss and increase the risk of hypotension or renal impairment. C. Blood pressure: The blood pressure of 122/68 mm Hg is stable and does not indicate hypotension or hemodynamic compromise. This value would not independently prevent the administration of furosemide, as diuretics can be safely given when blood pressure is within an acceptable range. D. Prescription for digoxin: Furosemide-induced potassium loss raises the risk of digoxin toxicity, especially when the potassium level is already low. Hypokalemia sensitizes cardiac tissue to digoxin, increasing the chance of dangerous dysrhythmias. This combination requires correction of electrolytes before administering the diuretic. E. BUN: The BUN of 19 mg/dL is within normal limits and does not indicate renal dysfunction or dehydration severe enough to contraindicate treatment. It provides no evidence of impaired renal clearance that would complicate furosemide use.