Patients are placed in ____________ as a last resort to prevent harm to themselves or others.

Patients are placed in restraints as a last resort to prevent harm to themselves or others because restraints are specifically designed to limit a patient's mobility when they pose a risk of injury to themselves or others. Using restraints is a measure that is taken with caution, as it can have significant psychological and physical implications for the patient. This approach is carefully regulated and usually involves thorough assessments to ensure it is necessary, appropriate, and in the best interest of the patient’s safety and dignity.

In contrast, Intensive Care Units (ICU) are intended for patients who require close monitoring and medical care due to severe or life-threatening conditions, which is not primarily related to preventing harm. A coma refers to a state of deep unresponsiveness and is a medical condition that cannot be induced as a preventive measure against potential harm. Observation may involve monitoring a patient's behavior or condition, but it does not actively restrain them and may not be sufficient when immediate action is needed to prevent harm. Thus, the use of restraints is an appropriate and focused method for addressing safety concerns when necessary.