How do doctors know when to release a patient?

When the patient says they have no more insurance, they get released.

When their insurance stops paying.

they constantly have you on tests so when all the tests come up good and your gashes are fading they will discharge you

When all the levels in their body are normal. Heartrate, blood pressure, temperature, blood sugar, brain activity, and that they are hydrated. As for a deep cut....after its cleaned and the stitches are in and bandaged up and all the levels are normal.

When the insurance companies tell them too.........
Sad state of affairs.
Legally, they cannot be released until they are stable.......hence no longer in danger of dying when they leave.

I'm not a doctor but I'm sure they go through these questions:

1. does the patient have insurance (if no, release)
2. is the patient bp (blood pressure) normal
3. is the patient still bleeding
4. if the patient stood up, would he fall down
5. is the patient dead (if yes, release)
6. can I make more money off the patient from unnecessary but marginally justifiable tests or surgeries (if no, release)

In your particular case,

1. the patient would have to have stable vital signs (blood pressure, heart rate, respiratory rate, temperature)
2. Show no signs of wound infection / breakdown. (or be able to take antibiotics if there is)
3. Be able to care for themselves and be able to move around (if not they need rehab)
4. Laboratory studies show either normal, improving, or stable numbers (eg:  if the hemoglobin level is dropping the person is still bleeding somewhere).
5. The person is able to hydrate/ feed themselves.
6.  They no longer require IV hydration
7.  The patient or caregiver is able to care for the wounds and dressing changes and can accomplish any other treatments that are required.
8. The patients pain is controlled by oral / topical medications

At no point does the patients insurance status play into the equation.  Whether the companies want the patient discharged or not, if i determine they are not safe to let go - they stay.