Four patients were mistakenly given potassium instead of painkillers during surgery, and at least two were left paralyzed.

Four patients undergoing outpatient joint replacement surgeries at Ascension Saint Thomas Midtown hospital in Nashville, Tennessee, were mistakenly administered potassium instead of the intended pain medication. The error occurred during routine procedures, leading to severe health complications for those involved.

At least two of the affected patients have been left paralyzed as a result of the medication error. Local authorities have launched an investigation into the hospital's protocols and the circumstances surrounding the administration of the incorrect substance.