Which of the following symptoms indicates Kidney Yin deficiency with fire blazing?

The symptom that indicates Kidney Yin deficiency with fire blazing is characterized by specific signs reflecting the balance of Yin and Yang within the body. In this context, Kidney Yin is responsible for cooling and nourishing functions, and its deficiency can lead to an excess of Yang, manifesting as "fire" symptoms.

Scant dark urine is a classic sign of Yin deficiency combined with excess Yang, as the body has insufficient Yin to adequately moisten and excrete fluids, leading to concentrated urine. Additionally, insomnia is often associated with this condition, as the lack of nourishing Yin leads to difficulty in calming the mind and achieving restful sleep. Together, these symptoms illustrate the internal heat and deficiency resulting from a lack of Kidney Yin.

Other symptoms, such as general weakness and fatigue, can occur in various conditions, but they are not specific markers for Kidney Yin deficiency with fire blazing. Likewise, palpitations with agitation can be linked to other issues, including heart-related concerns, and edema with abdominal fullness typically suggests another imbalance in the body's constitution, often involving the Spleen or Qi deficiency. Thus, the combination of scant dark urine and insomnia most accurately reflects the characteristics of Kidney Yin deficiency with fire blazing.