To prevent excessive bleeding, a patient should stop taking which of the following medications 5 to 7 days before undergoing a surgical procedure?

Atorvastatin is a statin used to lower cholesterol levels and does not significantly impact platelet function or increase bleeding risk. It can typically be continued until the day of surgery without raising concerns about excessive bleeding.

Levofloxacin is an antibiotic that does not affect platelet function. While it is important for treating infections, it does not pose a risk for increased bleeding during surgical procedures, so there is no requirement to stop this medication beforehand.

Lisinopril is an ACE inhibitor used for hypertension and heart failure. It does not interfere with platelet aggregation or hemostasis and can generally be continued during the perioperative period without increasing the risk of bleeding.

Potassium chloride is a supplement used to treat or prevent low potassium levels. It does not affect bleeding risk and should not be stopped prior to surgery, as maintaining proper electrolyte balance is essential for patient safety.