"Please find a nurse to take another urine sample." Zhou Congwen smiled slightly and glanced at the director of the senior ward.

No one raised any objections, and the head nurse in the senior official ward immediately went to receive the urine sample in person.

It took a long time before she came back with the urine sample from the half-reagent tube, and the color was still clear and pale yellow urine.

"This is the ferric chloride solution obtained by the laboratory." Zhou Congwen took the solution obtained by Li Qinghua, sucked some with an ear wash ball, and dripped it into the test tube.

In an instant, the urine sample in the test tube turned blue-green, which was completely different from the color that had changed by the urine itself before.

Moreover, this color seems to be fixed and does not change over time.

"Simply explain it." Zhou Congwen said lightly, "The old man's urine is black. I just said that it is urinary melanosis, and the urine contains urinary black acid.

The black urine acid itself is colorless, but after being left in the air for a period of time, it will react with oxygen and turn into a black substance."

"It's like the first time we saw the urine gradually changing color, not magic, but the inevitable reaction that occurs after the patient's urine is oxidized."

"Because there are some elements that oxidize and turn black, I used ferric chloride to confirm it again."

"It turns out that the patient's urine contains urinary black acid."

"Because melanosis is a genetic disease, there is no solution in the world for the time being, so it can only be treated symptomatically. The most serious symptom of the elderly is arthritis, so I suggest going to the orthopedics of 912 instead of urology."

"Can the black acid in urine cause osteoarthropathy?" Xiao Qiang's joy disappeared, and he accidentally spoke to himself.

Xiao Qiang wanted to overturn Zhou Congwen's conclusion, but Zhou Congwen used two urine samples to perform different tests and verified his words in front of everyone.

The key is that the theory Zhou Congwen said sounds very reasonable, but Xiao Qiang didn't know at all, and he couldn't start to refute it.

“In 1945, Hertzberg described the pathological process of joint lesions in patients with black uric acid.

Brown-yellow pigment deposits on articular cartilage, especially aging cartilage with poor metabolism. The cartilage becomes black, loses elasticity, is fragile, and can hardly withstand mechanical stress.

Cartilage is prone to rupture, and small black fragments enter the joint cavity, firmly adhere to the joint synovial membrane and are embedded.

Mechanical stress leads to joint surface sclerosis, cyst formation and infarction. Subchondral bone is activated, proliferated and grows into the lesion cartilage area. Osteophytes at the edge of the joint are proliferated. Cartilage disappears, resulting in bone antonymosis."

"The elderly are in a serious condition and need to undergo knee replacement. Similar surgery is not mentioned in our Jianghai City, even in the province, so it is correct to go to 912."

So that's it.

Although Zhou Congwen can understand every word and every word, no one can understand it together.

Not only the patients' families, but also the several deans, department directors and directors present understood.

Biochemistry is a very complex subject. When I went to school, I only had a thin book, and some schools still took elective courses.

But the facts were in front of me, and everyone stared at the changed colored urine in the two test tubes, basically believing what Zhou Congwen said.

Zhou Congwen glanced at Xiao Qiang, and saw that he didn't say anything, then smiled slightly and continued to explain.

"The old man has both sides of the auricle and his fingers have blue and black spots scattered on his skin, which is a typical manifestation of black uric acid.

I checked my body and found that the old man's metacarpophalangeal joints and interphalangeal joints on both sides were swollen; the lumbar flexion movement was limited, and the maximum flexion angle was 60°.

Bilateral knee varus deformity, 5° on the left, 8° on the right, tenderness on the medial gap of the knee, 15°-120° on the left, 25°-105° on the right; the bilateral patellar grinding test was negative, and the bilateral "4" test was positive."

"Clinical examinations show that the knee changes of the elderly are already very serious. Although urinary melanosis cannot be cured for the time being, it can be relieved through knee replacement and reduce pain."

"There is no risk." The leader of the group company murmured.

"As long as it is surgery, there are risks." Zhou Congwen said useless nonsense, "But please believe in the technical strength of 912. If 912 cannot be done in China, there will be no other way."

"Doctor Zhou, are you familiar with 912?" The group leader had already believed Zhou Congwen without realizing it.

"It's okay, my diagnosis is here, why don't I contact the orthopedics of 912?" Although Zhou Congwen used a question, anyone could tell the meaning inside and outside it was a positive sentence.

"good."

The leader of the group company made the decision.

Zhou Congwen smiled slightly, took out his cell phone, "I'll go out and make a phone call."

"Just fight here." The leader of the group company patted Zhou Congwen on the shoulder, "The young man is very professional, has a promising future!"

Xiao Qiang's eyelids twitched when he heard him praising Zhou Congwen like this.

It's so fucking! Xiao Qiang cursed in his heart. Fortunately, he didn't refute just now, otherwise Zhou Congwen would have embarrassed himself.

Zhou Congwen smiled and called.

"Boss, are you still used to eating chicken claws?"

“…”

When Zhou Congwen called in a very casual tone, everyone in the room was stunned, especially Li Qinghua. Because he knew that Zhou Congwen was calling Mr. Huang, the top presence in the domestic cardiothoracic surgery department.

Zhou Congwen is so familiar with Mr. Huang?! Li Qinghua can't believe it at all.

"It's delicious, why are you going to come to the imperial capital? Remember to bring me a few. By the way, I'll give it to me secretly, so don't let Deng Ming see it."

Huang Lao's voice came from the phone.

"No, I just ask, and then ask you something."

"Boy, just guess, if you have a patient, you can do the surgery yourself, there is no need to make trouble."

"I am not a patient in our thoracic department, but a urinary myriad arthritis. I judged that I would have to undergo knee replacement." Zhou Congwen briefly explained.

"Oh, when will it be a day in advance to tell me that I will contact you a bed. By the way, boy, will you follow me?" asked Mr. Huang.

"Do you need me to go?"

"Of course, come here and secretly bring me three... no, five chicken claws. Hide Deng Ming. The last time he came back to Jianghai City, he was scolded by my wife. I have seen it very well recently."

"Okay, I'll accompany the patient." Zhou Congwen said with a smile, "Boss, are you fine?"

"Come on time! I'll ask you for a single room within three days."

"good!"

Zhou Congwen hung up the phone, and the room was quiet, as if only the heartbeat sounded.

"I am an academician of the Academy of Sciences, the Academy of Engineering, and our Department of Thoracic Surgery." Zhou Congwen explained, "Is it convenient to have a single room within three days?"

"Of course, of course!" The leader of the group company knew what a single room in the Imperial Capital 912 meant.

His level has reached its peak in Jianghai City, but it is not enough to see it in the imperial capital, and it is located between a hospital bed and a single bed.
Chapter completed!