Myocardial enzyme test, exercise stress test, standard electrocardiogram, ultrasound, multi-slice CT, angiography, Holter monitor, 4D color Doppler ultrasound, cardiac MRI, coronary CTA, myocardial rest imaging...
Yan Feifan spent nearly ten minutes reviewing the thick stack of imaging files, along with copies of various test results and lab reports.
He discovered that the patient, a man named Pang Zheng, had undergone practically every heart-related examination imaginable.
And not just once, either.
Furthermore, the man had also gone through a full-body checkup, cancer screenings, a brain MRI, and numerous other tests.
After reviewing all the images and documents, Yan Feifan closed his eyes, his mind sinking into deep concentration as he began to analyze the various images, data, test conclusions, and their correlations...
"Brother, did you see that?"
Yu Suye gently nudged Yu Chuanbai beside her with her shoulder and whispered, "The way Feifan looks right now... it seems like he’s spacing out, but he’s actually thinking."
"It’s a state of incredibly deep, high-intensity focus, a complete immersion that tunes out all external distractions."
"Watch this..."
As she spoke, Yu Suye reached out and waved her hand a few times in front of Yan Feifan’s eyes.
"See? His eyes aren’t moving, are they?"
"He didn’t even blink, right?"
"Wow, you’re right!" Yu Chuanbai was amazed.
Tian Yu found this fascinating and, eager to try for herself, said, "Hehe, let me give it a shot!"
She walked up to Yan Feifan and waved her hand as well. Seeing that he was as still as a statue, she confirmed that he truly wasn’t reacting.
Tian Yu bent down, used her fingers to pull the corners of her eyes and mouth wide, stuck out her tongue, and made a goofy face right in front of him.
"Tee hee, still no reaction. This is so much fun."
This scene inexplicably intrigued Song Yi, who stood up and said cheerfully, "Move over, Xiaoyu. Let me try."
She also walked up to Yan Feifan, bent down close, pulled the corners of her eyes up with her hands, and stuck her tongue out a little.
"Bleah, bleah..."
Song Yi had just softly "bleahed" twice when she saw Yan Feifan’s body suddenly jerk back as if he’d been startled.
"Ah...!"
Letting out a startled cry, Yan Feifan snapped back to full awareness of his surroundings and recognized Song Yi making a face in front of him.
"Song Yi, what are you doing?"
Faced with Yan Feifan’s question, Song Yi felt her face flush. She quickly dropped her hands, stood up, and mumbled, "Nothing."
She quickly changed the subject. "Feifan, have you figured something out?"
"I suppose so."
Yan Feifan replied, then looked at Kang Zhongtao, who was sitting on the sofa to his side. "Mr. Kang, based on these imaging files and test results, there’s nothing wrong with your friend or relative’s heart."
"He just has some minor chronic issues with his blood sugar and blood lipids."
"But none of that is enough to cause heart palpitations and chest tightness."
Kang Zhongtao nodded quickly, then sighed. "Mr. Yan, more than one doctor has reached the same conclusion as you."
"The problem is, my friend has experienced severe heart palpitations and chest tightness on more than one occasion."
"He now carries Quick-Acting Heart-Saving Pills with him at all times, as well as that so-called miracle drug made from an old recipe he managed to track down, the An Gong Niu Huang Pill."
"Mr. Yan, what do you make of his situation?"
Yan Feifan tapped the stack of files on the coffee table and said thoughtfully, "Judging from these test results, your friend is in remarkably good health."
"If the palpitations and chest tightness aren’t caused by internal factors, then they’re most likely caused by external ones."
"External factors?" Kang Zhongtao asked, confused.
Yan Feifan explained, "Things like allergens, toxic substances, and so on. They can all trigger an adverse cardiac reaction."
"Why don’t you give him a call and ask for more details."
"Ask about the specific details of when his palpitations and chest tightness flare up—the time, the place, and so on. See if there’s any pattern."
"I’ll call him right now."
As he spoke, Kang Zhongtao took out his phone and dialed a number.
The phone rang several times before it was answered.
"Mr. Pang, it’s me, Kang Zhongtao..."
"Sorry to bother you."
"I’m with Mr. Yan at the Affiliated Hospital right now."
"Yes, *that* Mr. Yan..."
"Mr. Yan has a theory..."
"His theory is that your palpitations and chest tightness might be caused by an external environmental factor, like an allergen or a toxic substance."