renalina

例句：

1. 1.She was diagnosed with a kidney stone and had to undergo surgery.
   她被诊断出患有肾结石，并不得不接受手术。
2. 2.The doctor advised her to take medication for the pain caused by the kidney stone.
   医生建议她服用药物来缓解由肾结石引起的疼痛。
3. 3.Kidney stones are often formed due to high levels of uric acid in the blood.
   肾结石通常是由于血液中尿酸水平过高而形成的。