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Jia Huangzhong, serving as Vice Minister of Rites and Director of Ceremonies, died from Zhongfeng Xuan (Wind Dizziness, a condition caused by wind pathogen affecting the head). Emperor Taizong deeply mourned and regretted his loss, severely reprimanded the physicians, and extensively searched within the city for those proficient in the *Shennong Bencao Jing* (Divine Farmer's Materia Medica), the *Huangdi Nanjing* (Classic of Difficult Issues), the *Suwen* (Basic Questions), and skilled in acupuncture and herbal medicine. He assessed their capabilities to fill positions in the Hanlin Medical Academy and the Imperial Medical Service.

The Empress Dowager of Qi fell ill and summoned Chen Yi (Chunyu Yi) to diagnose her pulse. Chen Yi stated: "This is Fengdan Ke Pao (Wind Jaundice invading the Bladder), characterized by difficulty in urination and defecation, and red urine." Chen Yi administered Huoqi Tang (Fire-Regulating Decoction). After one dose, both upper and lower orifices opened; after two doses, the illness was cured, and urination returned to normal. This disease resulted from profuse sweating (Didi) when removing clothes. The reason Chen Yi could identify the cause of the Empress Dowager's illness was that upon palpating her pulse at the Taiyin mouth, he felt a moist sensation, indicating the invasion of wind qi. The Pulse Method states: if the pulse is large and firm upon deep pressure, and large and tight upon light pressure, the disease is primarily located in the Kidney. However, the palpated pulse contradicted this: a large and rapid pulse indicates excess qi in the Bladder, while rapidity indicates internal heat causing red urine (from *Records of the Grand Historian*, Biography of Chunyu Yi).

The King of Jibu fell ill and summoned Chen Yi to diagnose his pulse. Chen Yi said: "This is Fengjue (Wind Jue Syndrome), manifesting as chest fullness." He then prescribed medicinal wine. After consuming three shi (a unit of volume), the illness was cured. This disease resulted from sweating and lying prone on the ground (exposure to cold). The reason Chen Yi could identify the cause of the King of Jibu's illness was that upon palpating his pulse, he detected wind qi characteristics. The Heart pulse was turbid, indicating the pathogen had entered the Yang aspect. When Yang qi is exhausted and Yin qi invades, the invasion of Yin causes Cold qi to ascend and Hot qi to descend, resulting in chest fullness. Sweating and lying prone corresponds to a pulse showing Qi and Yin deficiency (text reads "Qi Yin Yin", implying damage to Qi and Yin). If Yin qi enters the interior, it must be expelled through diuresis (from *Records of the Grand Historian*).

When the former King of Qi was Marquis of Yangxu, he suffered from severe illness. Many physicians diagnosed it as Jue (Jue Syndrome). Chen Yi, upon diagnosing the pulse, identified it as Bi (Obstruction Syndrome), with the root located under the right hypochondrium, the size of an inverted cup, causing panting, rebellious qi, and inability to eat. Chen Yi immediately administered Huoqi Zhou (Fire-Regulating Porridge) for six days. Once the qi descended, he prescribed pill medicines. After another six days, the illness was cured. This disease originated from internal injury. During diagnosis, the specific meridian explanations were not identifiable, but the location of the disease was clearly known (ibid.).

Chen Yi once treated Cheng Kaifang from Wudu Li in Anyang. Cheng Kaifang claimed to be healthy. Chen Yi stated he was suffering from Tafa Feng (Tafa Wind), which would lead to immobility of the four limbs after three years, followed by aphonia (loss of voice), and then death. It is now heard that his four limbs are unusable and he has lost his voice, but he has not yet died. This disease resulted from frequent alcohol consumption followed by exposure to strong wind pathogens. The reason Chen Yi could identify Cheng Kaifang's condition was that the pulse matched the description in the *Qike* chapter: "Opposite Zang qi leads to death." Palpation revealed the Kidney pulse appearing in the Lung position. The Pulse Method states death will occur in three years (from *Records of the Grand Historian*, ibid.).