The early morning fasting urine-to-plasma urea ratio reflects the kidneys’ urine-concentrating capacity, which may decline early in ADPKD, according to investigators. The urine-to-plasma urea ratio ...

Urine is a liquid waste material produced in and excreted by the body. Secreted by the renal tubules, it accumulates in the urinary bladder and is excreted via the urethra. While it is composed of 91 ...