After doing all this, the nurse said: "Doctor Wu, the oxygen inhalation device has been connected. Adjust the concentration and flow rate."

Having learned the lesson from last time, the nurse did not dare to turn on the oxygen to the maximum, for fear that the oxygen device would be damaged because it could not withstand the high-pressure oxygen supply.

Seeing this, Wu Xiangdong said in a deep voice: "High-flow oxygen therapy, oxygen inhalation 8l/min, pay attention to monitoring the patient's blood oxygen saturation."

"OK."

After the previous panic, the nurse was obviously much calmer. Especially with Wu Xiangdong sitting beside her, she felt an unprecedented sense of security.

As the nurse adjusted the oxygen flow to 8l/min, in the humidification tank below the flow meter, the distilled water mixed with ethanol began to form tiny bubbles.

After the humidification effect, the oxygen is transported to the old man's body again along the nasal cannula.

This time, the old man's breathlessness was obviously relieved, his rapid breathing was returning to normal little by little, and the alarm sound that originally lit up with a red light gradually began to disappear.

"Doctor Wu, the patient's blood oxygen saturation has risen to 90%."

The nurse was surprised to find that the blue line that originally symbolized blood oxygen saturation on the monitor screen began to rise little by little, and after a while it had reached a more normal level.

She said excitedly: "It turns out that ethanol humidification and oxygen delivery are so effective for patients with acute left heart failure. Doctor Wu, how did you discover this treatment method? It's amazing."

After all, in the nurse's inherent thinking, medical alcohol is used for surface disinfection or air disinfection, but what Wu Xiangdong did now opened her eyes.

Facing the nurse's almost fanatical admiration, Wu Xiangdong secretly shook his head. You must know that this kind of treatment process has become common sense for almost every medical staff twenty years later.

But now, it seems that these processes have not been used yet, or it may be due to lack of information. Except for some large hospitals, the first aid level in other areas is still in the exploratory stage.

This is especially true for the emergency department of Hamada Hospital. Not only is the department newly established, but the staff are also new, and some of them have even started working without systematic training. Therefore, it is understandable that these first aid knowledge needs to be strengthened.

So Wu Xiangdong thought for a while and said: "In this way, after today's work is over, I will go back and sort out these most basic emergency treatment procedures, and let everyone sit down and learn together."

"After all, for our emergency department, first aid measures must not only treat the symptoms, but also the root cause. Only in this way can we alleviate the patient's condition and reduce their pain."

Wu Xiangdong's words fell on the nurse's ears, and she seemed very excited, "That's great."

After all, for her, during her time working in the emergency department, she often felt like she didn't know where to start. This didn't mean that she didn't study hard, but that she simply didn't know what to do.

She has the energy and time, but she lacks the experience and ability of someone like Wu Xiangdong to learn from. But things are getting better now. With Wu Xiangdong joining the emergency department, earth-shaking changes will definitely take place in the future.

At this time, after a period of oxygen therapy, the old man's vital signs gradually returned to normal.

"The heart rate is still a bit fast." Wu Xiangdong glanced at the value on the monitor. The old man's heartbeat was still at 110 beats/min, which was sinus tachycardia.

Then he started asking the old man questions, and then he learned that the old man had been suffering from asthma a few days ago.

"Uncle, did you wake up and sit up because of sudden chest tightness and shortness of breath after falling asleep a few nights ago?"

"Yes, doctor, how do you know this?"

At this time, the old man was able to communicate simply. He looked at Wu Xiangdong with slight surprise, wondering why he could see what happened to him a few days ago at a glance.

Wu Xiangdong heard this and said: "Uncle, you have paroxysmal dyspnea at night, which is a symptom of left heart failure."

"Do you usually get out of breath easily when you walk a lot and do it, and you even have to sit down and rest for a long time before you can recover?"

"Yes, yes, that's it." The old man was completely shocked, because every symptom Wu Xiangdong mentioned was exactly the same as what had happened to him before.

Coupled with the appearance of Wu Xiangdong, the old man's condition was significantly relieved, and he began to believe in the young man in front of him who had never met before.

Seeing this, Wu Xiangdong smiled and said: "Uncle, you don't need to be nervous. You are just suffering from heart failure. I will give you some medicine later to alleviate the symptoms. If you pay more attention in the future, you will not have the current problem again."

Condition."

After that, Wu Xiangdong squatted beside the old man's bed and took off the tourniquet tied to his calf.

"Huh?"

At this moment, Wu Xiangdong discovered a problem. He saw a deep strangulation mark on the old man's calf, which was the mark left by the tourniquet just applied.

It's just different from the usual removal of the tourniquet. The old man's skin sank very obviously, and the depression was so thick that it could even fit a little finger. This is obviously not normal.

So, Wu Xiangdong was about to reach out and take off the shoes on the old man's feet.

"Doctor, dirty."

However, this move startled the old man, and he hurriedly avoided, fearing that his muddy canvas shoes would stain Wu Xiangdong's hands.

"Uncle, it's okay, I'm just doing a check-up."

Wu Xiangdong waved his hand, indicating that it was okay, but the old man stammered and said embarrassedly: "I... haven't washed my feet for many days."

When Wu Xiangdong heard this, he smiled and said nonchalantly: "I thought it was something. As a doctor, you have never seen anything, so you can just treat the disease with peace of mind."

After that, he took off the old man's shoes directly, which also attracted the attention of the nurse on the side, but when she saw the old man's feet, she almost screamed.

"Doctor Wu, his feet are so swollen."

I saw that the old man's feet were like expanding sponges. The surface of the skin was crystal clear, and the bottom seemed to be filled with liquid, as if the water could be squeezed out with a needle.

When the old man saw this scene, he seemed to be used to it. At this time, he saw the doctor looking at his feet, and he said a little embarrassedly: "My feet are just for walking these days. It's nothing serious. I can just rest for a while."

"

However, Wu Xiangdong shook his head after hearing the old man's explanation, "Uncle, your feet have been swollen for more than a day or two. With such obvious edema, you usually don't have much urine output."

"Urine volume?"

Faced with Wu Xiangdong's inquiry, the old man was obviously taken aback. What does the swollen feet have to do with the amount of urine?

Although he didn't understand why Wu Xiangdong asked this, he still tried to recall: "It's normal for me to drink water, but recently I really don't like the toilet very much. I don't know why, but this is related to my current illness.

What does it matter?"

Facing the old man's doubts, Wu Xiangdong thought for a moment and tried his best to speak in words that the old man could understand: "Uncle, think about it, they say women are made of water. In fact, 70% of the body of both men and women is made of water."

"Both skin respiration and kidney absorption are inseparable from water, but if there is too much water in a person's body and it cannot be excreted through urine, it will increase the burden on the heart."
Chapter completed!