How much will it cost to send this letter to ? can you take extra strength tylenol and aleve at the same time You see the call light as an emergency flare, but your nurse may see just another blip on an already crowded radar. Heck, you may have time to watch another half episode of Judge Judy before help arrives: A 2012 University of Michigan at Flint study of four hospitals found that patients waited up to 18 minutes for a nurse or another staffer on the floor to respond to a call light.