That afternoon, Zhaxi went to find his two roommates again and told them what Yang Ping had said.
"Missing a link?" Bilige, the roommate from Inner Mongolia, frowned. "Which link?"
Ely from Xinjiang thought for a moment and said, "Stool sample? But the Patient isn't having diarrhea now, what do we do?"
Zhaxi said, "We can't just wait for him to poop, right? What if he doesn't go for ten days or half a month, and the aneurysm blows in the meantime?"
The three of them fell silent for a while.
Suddenly Bilige said, "How about we ask if we can use a rectal swab?"
"Rectal swab?" Ely asked.
Zhaxi said, "You use a cotton swab to take a sample from the anus, you don't need to wait for stool. Some Hospitals test for Clostridioides difficile that way."
Bilige's eyes lit up. "That's a good idea."
Ely said, "But we have to talk to Professor Yang first, we can't just mess around on our own."
Zhaxi nodded. He had made up his mind.
On Friday morning, Zhaxi arrived at the Hospital at six.
