During the night of duty, a nurse injects antibiotics into a 50-year-old patient After removing the needle, the nurse found that the patient was cyanotic, having difficulty breathing, the pulse was fast, small, difficult to catch, low blood pressure can not be measured. The doctor on duty is examining the patient at the moment staff in another department. The nurse administers intramuscular injection to the patient Adrenaline tube 1mg, give the patient oxygen, and at the same time ask someone to invite a doctor to examine and treat continue. When entering the ward, the doctor criticized the nurse for taking medicine on her own when there is no medical order right in front of the patient and family. What are your comments and solutions?