From 2008 to 2010, I worked in the emergency center of Jiangsu Provincial People’s Hospital, which was the hardest 2 years of my work. During this period, I had the opportunity to see a variety of acute and critical conditions, to determine a good diagnostic thinking, and to lay a solid foundation for the future career in medicine, so that “everything is the best arrangement!” A good diagnosis process is like a judge judging a case, analyzing layers and layers, and finally finding the culprit, there will be a deep sense of joy and accomplishment. This is not about money and honor, and is the real reason why most doctors, no matter how bad the external environment is, stay in their medical positions. Our hospital emergency center is divided into five functional units: emergency consultation room, emergency resuscitation room, emergency observation room, emergency ward and emergency ICU. The emergency observation room, as the name implies, is where patients are kept for observation. The patients here are all patients whose vital signs and conditions have been temporarily stabilized after emergency treatment, but there is still a possibility that their conditions may recur, so they cannot go home for the time being and have not yet reached the criteria for hospitalization. On the second day of 2009, I was on duty in the emergency observation room, and the most impressive part of the Spring Festival Gala that year was Liu Qian’s “Time to Witness a Miracle” magic show. I also witnessed a “medical miracle” happen. That day, an old lady in her 70s was brought in from the emergency room. When the doctor told me during the shift, he said, “The family found the patient at home in the morning and sent her to the emergency room. The old woman was sleeping peacefully, not like a coma; her physical examination revealed that her limb tone and muscle strength were normal, and she did not look like she had a cerebral infarction; however, her pupils were pinpoint-like and very small. Pinpoint pupils are usually seen in cases of morphine-based, barbiturate (Valium) or organophosphorus insecticide poisoning, or serious problems such as bleeding and infarction in the brainstem. This old lady did not look like a drug addict; she did not smell like garlic (a characteristic smell of organophosphorus poisoning); and she did not look like she had bleeding or infarction in her brainstem, which caused severe instability of her vital signs. After ruling out other possibilities, I generally judged that the old lady had overdosed on Valium. How could the old lady overdose on Valium? Could she have taken Valium to kill herself? I asked her son, “Has the old man had any emotional problems lately?” Her son said, “No, I just came from my home in Zhejiang to Nanjing for New Year’s Eve, so I’m very happy! Surely she wouldn’t want to commit suicide.” This basically ruled out the possibility that the old lady wanted to commit suicide by swallowing sleeping pills, and the possibility of taking the wrong medicine was higher. I asked the old lady’s husband again: “What kind of medicine has she been taking lately?” The old man said, “Aspirin and Valium, two drugs brought from home. Every day before going to bed aspirin (should be the domestic 25mg a piece kind) eat four (a total of 100mg), Valium eat one.” Now I understood that the old lady had taken the wrong medicine every day for 4 days from the 28th of the year to the night of the first day of the year, taking Valium as aspirin, four Valium every night, and a total of 16 Valium tablets! I prescribed a flumazenil (specifically used to reverse the central sedative effect caused by Valium, the antidote to Valium poisoning), asked the nurse MM to push intravenously, and said to the nurse MM: “The time has come to witness a miracle!” Sure enough, as soon as the flumazenil was pushed in, the old lady responded, quickly woke up, and confirmed the fact that she had taken the wrong medication. It turned out that the old lady had wrapped both drugs in a few sheets of white paper, with no indication of what they were. After the diagnosis was clear, the old lady was allowed to go home that afternoon to enjoy her family, and she was re-prescribed the two medications, with the bottles clearly written on them, explaining to the old lady’s son that he should never take the wrong medication again. There are many cases of wrong medication in clinical work: wrong dosage, wrong number of times, and wrong kind of medication. Patients often subconsciously think that drugs are taken three times a day, and there was a patient who took warfarin (anticoagulant) one and a half times a day, three times a day, and became comatose from a brain hemorrhage. For this patient, the correct way to take warfarin is once a day, one and a half tablets at a time. Three times a day was clearly an overdose, leading to a significant prolongation of the clotting time and a serious consequence of brain hemorrhage. There are also people who take medication very casually, such as taking antihypertensive drugs only when their blood pressure is high, and not when it is normal, which can lead to great fluctuations in blood pressure. In fact, antihypertensive drugs should be taken every day, and if the blood pressure is low after eating, it should be gradually reduced. It is important to adhere to one long-acting antihypertensive drug a day to avoid blood pressure fluctuations. I mentioned in the microblogging about an old man who took Eugenol, he took Eugenol (supplemental thyroxine) without doctor’s advice, 6 tablets a day! 6 tablets, ah, 75-year-old man, heart beating wildly, 120 times a minute! I had a hard time finding out about this situation, and the final test results revealed that the thyrotropin was less than 0.005mIU/l, and that the tachycardia was caused by severe hyperthyroidism. Later, the old man patted my shoulder and said, “Thank you, Dr. Liu, you saved my life!” The Spring Festival is coming up again, remind people who have chronic diseases and need to take long-term medication to visit friends and relatives during the Spring Festival, and to make sure that the names of the medications, what to take in the morning, in the afternoon and in the evening, and how much to take are clearly marked before traveling to avoid confusion and big mistakes!