You can set alarms on tasks. They ring when the task is past due. That is, you will hear a kind of ringtone if the task's deadline arrives before you've marked the task done. This is a much-appreciated feature for busy nurses doing many things at once and wanting to make sure everything is on time. But why do they sound like that?
What makes a sound suitable for this purpose is a matter of taste -- everyone's is different! -- and we're happy to add one if you request it.
Some of the sounds in the app came from www.soundbible.com. Some were created by the brilliant Mike Koenig -- many thanks, Mike!