Final answer:
The electrolyte imbalance associated with digoxin toxicity is hypokalemia.
Step-by-step explanation:
The correct answer is 2) Hypokalemia. Digoxin is a medication used to treat heart failure and certain types of irregular heartbeats. It works by increasing the force of the heart's contractions. However, digoxin can also interfere with the normal balance of electrolytes in the body, leading to an imbalance of potassium. Hypokalemia is a condition characterized by abnormally low levels of potassium in the blood, and it is associated with digoxin toxicity. Symptoms of hypokalemia can include muscle weakness, fatigue, irregular heartbeat, and gastrointestinal disturbances.