In fact, Zhang Nan is not the kind of person who doesn't know the rules, after all, this is Du Ruhui's mansion, not his own mansion, but Zhang Nan is really angry, this is clearly a quack, he knows that Du Ruhui's respiratory system has problems, and he makes the air in the house so stuffy, and he doesn't open the window, Zhang Nan really doesn't know what to give this imperial doctor who doesn't have any common sense.

But now is the time when Du Ruhui's life is at stake, Li Er doesn't want to care about these at all, and Zhang Nan is also an acquaintance of Du Fu, so no one said anything about Zhang Nan's appearance.

"Qingquan, you should think of a way." Li Er saw that Du Ruyan was out of breath and anxious, and hurriedly said.

"Your Majesty, don't worry, things have to be done little by little. First of all, don't leave too many people in the house, let's all go out, a few of us in the house is enough. After Zhang Nan finished speaking, Li Er waved his hand, and all the subordinates immediately went out.

In fact, Zhang Nan also has his own reasons for not letting people stay in the house, after all, Du Ruhui is now sick like this, and there is nothing to run errands, and in case Sun Simiao is too late to arrive, the people of the Du family are all around Du Ruhui, so it is more convenient for Du Ruhui to explain the future.

As soon as the people left, the windows were opened, and fresh air immediately poured into the originally dull room, but even so, Du Ruhui was still panting heavily, feeling that he couldn't breathe.

"Master Du, don't be in a hurry, breathe slowly, the more anxious you are, the more breathless you are. Come, follow my rhythm, exhale, inhale, exhale, inhale. Zhang Nan said as Du Ruhui breathed with Zhang Nan's rhythm, looking much better.

"Master Zhang, what's going on with my father's illness?" Du He asked with red eyes, it seemed that Du Ruhui's current state made Du He's heart very uncomfortable.

"I'm not sure about this, I don't know if Lord Du's illness is on the heart or the lungs." Zhang Nan shook his head and said, after all, Zhang Nan is not a professional doctor, and he doesn't know much about Du Ruhui's medical history, so Zhang Nan doesn't dare to jump to conclusions.

No matter what Du Ruhui looks like now, it is either a heart attack or a lung problem, and there should be only these two aspects that have not run.

"Duhe, let me ask you if your father has any asthma." The asthma that Zhang Nan said is asthma, which is the problem of Lao Li's whole family.

"I remember that my husband has never been out of breath since he got married." Mrs. Du interjected.

"If it's not asthma, it's definitely a heart attack." Zhang Nan said with an affirmative face.

"Master Du, have you often felt breathlessness, chest pain, and sometimes heart pain recently?" Zhang Nan asked, Du Ruhui was still breathing according to Zhang Nan's rhythm, but after listening to Zhang Nan's description, Du Ruhui quickly nodded.

Zhang Nan nodded, so he replaced a medical oxygen bag from the system, and asked for a small gourd porcelain bottle, which is a common fast-acting heart-saving pill in modern times.

"Lord Du, take this pill under your tongue first, don't swallow it." After Zhang Nan finished speaking, he sent the quick-acting heart-saving pill to Du Ruhui's mouth, Du Ruhui took the medicine, Zhang Nan gave the medical oxygen bag to Du Ruhui to use, and soon, Du Ruhui was able to gasp normally, although Zhang Nan knew that this oxygen bag was used for fifteen or twenty minutes, but he finally saved Du Ruhui's life first.

Du Ruhui took the medicine, and soon lay on the bed with his eyes closed, quietly breathing oxygen.

Li Er saw that Du Ruhui seemed to have reported his life, and immediately breathed a sigh of relief, Mrs. Du saw that Du Ruhui was not panting for breath anymore, and she also thought that Du Ruhui was safe, and the whole person was relieved.

"Qingquan, it's good to have you, if it weren't for you, Keming might be ...... today" Li Er couldn't go on when he said this.

"Your Majesty, now is not the time to take it lightly, after all, I haven't figured out what kind of illness Lord Du is." Zhang Nan said.

"Didn't figure it out? Didn't you already prescribe the right medicine for Kemin? Li Er asked strangely.

"No, this medicine is specialized in promoting qi and blood, removing stasis and relieving pain, increasing coronary blood flow, and relieving angina. And now I only know that Master Du's illness is in the heart, but as for what kind of heart disease, I don't know. Zhang Nan said.

"Oh? Are there any other problems in this heart? "Li Er is a medical idiot, and Li Er doesn't know anything about this kind of thing.

As a modern person, Zhang Nan still has medical knowledge, so he casually gave Li Er a few examples.

"There are many types of heart disease, let me name a few, including rheumatic heart disease, congenital, coronary heart disease, hypertensive heart disease, cor pulmonale, and so on."

"What kind of heart disease is that husband?" Mrs. Du couldn't wait to ask.

"I really don't know." Zhang Nan shook his head, for this kind of detailed examination, it is still necessary to use professional instruments, if Zhang Nan can distinguish it by just looking at it and listening to the medical history, then it will not be Sun Simiao who will be famous in history in the future, but Zhang Nan.

"By the way, I'm going to check Master Du's blood pressure, and Mrs. Du will trouble making a place." After Zhang Nan finished speaking, he replaced another electronic sphygmomanometer from the system, because Zhang Nan of mercury would not use it.

Zhang Nan lifted Du Ruhui's sleeve, and then put the armband on Du Ruhui's arm, at this time, Du Ruhui just stared at this magical thing with big eyes and did not speak.

Zhang Nan didn't want to explain much now, it was more important to measure Du Ruhui's blood pressure first, so he turned on the blood pressure monitor and began to measure Du Ruhui's blood pressure.

Soon the results came out, as Zhang Nan expected, Du Ruhui not only has serious heart disease, but also high blood pressure, now Du Ruhui seems to be calm, in fact, the high blood pressure has soared to one hundred and sixteen, Zhang Nan really has no way to do this only forty-five-year-old Du Ruhui, according to Zhang Nan's understanding, Du Ruhui is only a middle-aged person, it stands to reason that his body should not be like this, but Du Ruhui's body is really poor, which is really difficult for Zhang Nan to understand.

"Mrs. Du, I want to ask, is Lord Du really recuperating and resting at home for the past few days? How do I feel like I'm overworked and not resting well, triggering heart disease and high blood pressure in my body? Zhang Nan asked.

When Mrs. Du heard Zhang Nan say this, she immediately said with a crying voice: "Qingquan, your guess is not bad at all, although my husband is sick at home, but he has not pulled down his work at all, and he has to stay in the study for seven or eight hours a day." ”