A nurse is assisting with collecting data on a client who is on a continuous ECG monitor. The client's ECG tracing shows no identifiable P waves and an irregular ventricular rate. The nurseshould recognize the client is experiencing which of the following cardiac dysrhythmias?

a. A client taking furosemide for chronic hypertension: Furosemide is a loop diuretic that can

lead to hypokalemia, which increases the risk of digoxin toxicity, as hypokalemia potentiates the effects of digoxin on the heart.

b. A client taking a potassium supplement twice a day: Potassium supplementation reduces the risk of digoxin toxicity, as hypokalemia is a risk factor for toxicity.

c. A client taking aluminum hydroxide for gastric upset: Aluminum hydroxide is an antacid and does not significantly affect digoxin levels.

d. A client taking chlorpropamide for type 2 diabetes mellitus: Chlorpropamide is an oral hypoglycemic agent and does not significantly affect digoxin levels.

a. Ineffective airway clearance: This is the priority as it addresses the immediate threat to the client's respiratory status. Accumulation of thick, copious secretions can lead to airway

obstruction and respiratory distress.

b. Malnourishment: While important, addressing malnourishment is not an immediate

postoperative priority. The client may receive nutrition through alternative means until normal swallowing function is restored.

c. High risk for infection: Infection is a concern, but ensuring airway clearance takes precedence in the immediate postoperative period.

d. Impaired verbal communication: Verbal communication is important, but it is not as immediate a concern as ensuring the airway is clear to prevent respiratory compromise.