Yes, the power attorney is a legally binding agreement. If the power attorney thinks that it is in the patient's best interest to be moved to another hospital, then that is usually what happens. The only other reason that would be able to be granted otherwise, is if a patient is able to still make his/her own decisions still, then they can vocalize their feelings.
Discharge from the hospital is the point at which the patient leaves the hospital and either returns home or is transferred to another facility such as one for rehabilitation or to a nursing home.
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A hospital is required by law to accept a patient in their emergency room long enough to at least get the patient stabilized so they can be safely transferred to another facility, such as a charity hospital for those who don't have the money to pay.
A patient who is moved from one ward to another within the same hospital, or from one hospital to another.
If no complications arise, the patient is transferred from the surgical intensive care unit (ICU) to a regular hospital room within one to two days.
They actually get privledges if they follow specific rules for each hospital. This is particularly helpful if one hospital in town has an agreement with one kind of insurance and another hospital in town has agreements with different insurance companies; the doctor can send their patient to the hospital that works with the patient's insurance.
Inpatient services benefit a hospital the most.
Under the right conditions, yes, a hospital can keep you from seeing a patient. If the patient is contagious, is undergoing surgery, or is in ICU (which is the most probable reason), a hospital can keep you from seeing a patient.
Hospital confinement is preventing a patient from leaving the hospital.
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The length of time the patient needs to remain in the hospital depends on the age of the patient and the patient's general health.
Givinging a patient heparin or another antithrombotic therapy after an orthopedic surgery to prevent a blood clot would be an example of primary prevention in a hospital.