It's not a practice in general hospitals, doctors and nurses are extremly busy in normal hospitals and cannot attend to watching someone frequently for a long period of time.
There is usually a psychatric ward in most hospitals.
Suicide watch is usually several days to a week, it's not safe to release a suicidal person straight into the community and a full psychatric evaluation takes place to find out what caused the suicidal behaviour.
Also a full detox from any liver damage takes longer than a one night stay in a hospital. A suicidal dose of painkillers damages the liver and is not something you can just walk away from within two days.
Whats more important to dicuss here is patch's safety.
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