My mom call 911 and get to hospital . They have b...

My mom call 911 and get to hospital . They have bed where patient can call nurse any time they want . So mom call 4 times by pressing that button for nurse because she needs water and no body shows for about 40 minute and yes it was in emergency room.so finally go out and get water for my mom. I am surprise how could this ingnorance can happen even in emergency room. Not happy with service