A 65-year-old man suffering from gout complains of kidney pain. Ultrasound examination revealed renal calculi. The most probable cause of calculi formation is the strengthened concentration of the following substance:

Answer options

1. Urea
2. Uric acid
3. Bilirubin
4. Cystine
5. Cholesterol

Explanation

Accumulation of uric acid (urate) in the bloodstream and joints is called GOUT which is usually accompanied by pains in the joints. It is produced in the body during the breakdown of PURINES. During urine analysis, it reveals acidity and pink color.