Zhang Xibei is in Wuzhong City, Ning Province, a city at the prefecture level that Lu Cheng has never heard of.

"I'm not sure either. Even if they're not a couple, their relationship probably isn't ordinary."

"I just got the phone number. After my junior sister talks to Dr. Zhang, we'll be able to finalize it."

"The main issue is my junior sister; she's already collaborating with another professor. She's such an expert in animal models that she never lacks research projects," replied Mu Nanshu.

"Ni Xixin said that if we need help with the next project, she can reserve time in advance."

"Hmm... Are you flying back tonight?"

"I'm on duty today, so I can't pick you up. Why don't you rest for another night? I'll pick you up from the airport; it'll be quick," suggested Lu Cheng.

"That might not be a bad idea..."

After considering for a while, Mu Nanshu said, "My junior sister is free today, so I'll go have hot pot with her and book a flight for tomorrow, landing at Lotus Airport in Zhang City."

"Alright, Boss Mu," Lu Cheng ended the chat.

After ending the chat, Lu Cheng specially checked the date; it was only October 10th, and Mu Nanshu's birthday was on October 18th.

Mu Nanshu is one month and one day younger than Lu Cheng; Lu Cheng's birthday is September 17th.

...

In the afternoon, at 7:20 PM.

In the emergency surgery clinic, Lu Cheng sat across from a patient with a ureteral stone. The patient was in slight pain, slightly contorting his body, as Lu Cheng explained, "Your stone isn't large in diameter, so you can take some medicine and observe for a few days."

"See if the medication helps break it down; if not, you'll need to have it surgically removed in urology."

"But a 5mm ureteral stone can usually pass on its own. Go home, walk more, drink more water, and take the medicine regularly."

"I've prescribed you Shenshitong and both oral and suppository painkillers."

"If the oral pain relief is ineffective, you can use a suppository at home."

"Alright, be sure to drink plenty of water and try to avoid eating tofu, konjac tofu, and other alkali-heavy foods! (Seriously, for readers with stones, you'll understand after being advised)," he emphasized.

Kidney stones and ureter stones are commonplace in the emergency surgery clinic, with several cases encountered daily.

The pain is severe and sudden, yet the condition itself is not urgent; it merely hurts without leading to any complications.

Lu Cheng was already quite knowledgeable about this, so his recommendations were proficient.

"Doctor, can I get an injection for the pain?" the middle-aged patient asked after the pain had slightly subsided.

Upon confirming the presence of the stone earlier, Lu Cheng had prescribed an injection of mebeverine.

Compared to traditional antispasmodic drugs, mebeverine has no anticholinergic effects, meaning it doesn't cause dry mouth, increased heart rate, or low blood pressure. It's quite suitable.

Larger stones can also be treated this way, although it would only alleviate pain.

"There's no need for that at the moment. With the current stone diameter, you primarily need to focus on lifestyle adjustments..."

"If the pain becomes unbearable at night, you can come back to the hospital for an injection. There's no such thing as pre-emptively injecting to prevent pain," Lu Cheng advised.

"Walk more, drink more water, and take your medication regularly!"

"If the pain doesn't subside after several days, then I'd suggest you go directly to surgery to remove the stone."

"Alright..." The middle-aged man, likely an experienced stone sufferer, sighed.

In truth, the standard treatment for kidney stones involves assessing the stone's composition, but it's not feasible to do this for every patient upon arrival.

It's too costly.

After seeing the patient off and finding that another was not yet present, Lu Cheng stood up and let out a yawn...

As Lu Cheng raised his head, he noticed a person charging through the door, still wearing disposable blue shoe covers, without having even removed their sterile surgical gown.

The person wore a sterile mask, revealing only their eyes, which Lu Cheng couldn't recognize. "Who are you?"

"Can you really perform an interior blind hemostasis?" the visitor's voice was sharp, nearly distorting from the tension.

It was Du Qiang from general surgery.

Lu Cheng didn't respond immediately. "Director Du, who told you about this?"

"There's no such thing as a blind hemostasis technique, only wound cleaning and hemostasis," Lu Cheng corrected!

Du Qiang leaned in, eyes wide, slamming the table. "Can you perform intra-abdominal hemostasis???"

"Lu Cheng! Are you even human? I almost begged you the other day, and you ignored me? Pretended not to hear?"

Lu Cheng knew Du Qiang was referring to the events of that night in Wei Ying's emergency room.

Lu Cheng calmly replied, "Director Du, weren't you calling me that night to reach Professor Chen?"

"You didn't even tell me the specifics of the patient's condition."

"Moreover, doctors don't knock on doors."

"If you didn't call for me, how could I possibly say anything?"

Du Qiang, realizing Lu Cheng was right, hadn't called for Lu Cheng specifically, nor did Lin Qianlong and others know about Lu Cheng's hemostasis skill level at that time.

Du Qiang only learned about Lu Cheng's capabilities today, hearing it from someone in the operating room.

They said that on the day Lu Cheng was handling an emergency, he even made Professor Chen Song fall silent, recognizing Lu Cheng's hemostasis skill level was astonishing even to Professor Chen Song.

After inquiring further into the details, Du Qiang nearly burst from rage!

Though it's unclear if his son would face imprisonment, his son's girlfriend certainly died, and even if it's involuntary manslaughter, it's still homicide.

Criminal responsibility cannot be escaped.

That night, Du Qiang practically begged Lu Cheng to find Professor Chen Song, but Lu Cheng did not agree.