On August 14, four patients went to Ascension Saint Thomas Hospital Midtown in Nashville for joint replacement surgery. All four were harmed during the procedure. The hospital has not said how. One family says the drug was potassium chloride instead of the anesthetic. That patient is paralyzed from the chest down. [Corrected: the hospital later confirmed potassium phosphate and mepivacaine. See the update below.] Why it matters: Spinal anesthesia for a knee or hip replacement … Continue reading Four Patients Got the Wrong Drug in Nashville. Ask a Better Question.