Noticing Zhao Qian's agitated reaction, Lu Liangwei was startled for a while before realizing what had caused it.
Long Yang was the emperor, and she had suddenly asked to take his blood. In their ears, such a request was a display of utter disrespect to the Emperor.
Moreover, drawing blood involved breaking the skin.
Usually, except for his close guards and the palace cavalry commander, nobody was allowed to bear any weapons in the presence of the Emperor to avoid any assassination attempts.
Zhao Qian reacted that way because of her rash request to draw blood, and even the way he looked at her had changed.
She raised her eyes and glanced at the Emperor. Seeing that his eyes showed no anger, she breathed a sigh of relief and explained, "I just want to examine what Your Majesty has been poisoned with through the blood so that I can prescribe the right treatment."