 [ Symptoms ] extreme low blood pressure after percocet following knee replacement reversal drug felt like heart attack explain taken percocet before for previous knee replacement pressure 7030 for several hours reversal drug 18 of regular dose felt like heart attack please explain this reaction [ Disease ] persistent fluid in the ears longer than three months may be an indication for tubes since this can interfere with hearing predispose to frequent middle ear infection and delay speech development please follow up with the ent on a regular basis to monitor this stagnant fluid and make sure your son appears to be hearing normally turning toward your voice or sounds etc 