CA199 isn't highly specific, and even if it increases, it doesn't necessarily indicate something like pancreatic cancer.
For example, during a woman's menstrual period, CA199 levels can rise. Yang Ping thought about this, and since there were no signs of a tumor from other tests, it was likely due to other reasons.
"What is the patient's menstrual cycle like? Is it her period now?"
"About that, Doctor Chen didn't pay much attention to the patient's menstrual cycle." Dr. Li couldn't answer immediately and leaned over to look through the medical records, where there was a section dedicated to recording menstrual history, but many doctors might not pay much attention to it.
Seeing the recorded menstrual history, Doctor Chen started to calculate the date of the next period.
"Why not just ask and know for sure, instead of sitting here guessing?" Director Fang was sharp-tongued but softhearted, and was straightforward in character, so he tended to scold people a bit.
