Final answer:
In emergency situations, nurses may administer oxygen without an order, but the specific amount will depend on the patient's needs and condition.
Step-by-step explanation:
In order to administer oxygen (O2) to a patient, a nurse typically requires an order from a physician. The amount of oxygen a nurse can administer without an order may vary depending on the specific hospital or healthcare facility's protocols and guidelines. It is crucial for nurses to follow these guidelines to ensure patient safety.
However, in emergency situations where a patient's life is in immediate danger, nurses are often authorized to administer oxygen without an order. This allows them to provide essential care while waiting for a physician to arrive.
It's important to note that the specific amount of oxygen that can be administered will depend on the patient's condition and needs. Nurses are trained to assess and determine the appropriate amount of oxygen to deliver based on factors such as oxygen saturation levels and the patient's overall condition.