A 24-hour urine collection test is a laboratory test to measure the content of certain substances in the urine, which can be used as a diagnostic indicator of the function of the kidneys. The test ...

A urine 24-hour volume test measures how much urine you produce in a day. It can be a helpful way to evaluate kidney function. The urine 24-hour volume test measures the amount of urine your body ...

A cortisol urine test enables a doctor to measure the amount of cortisol present in a person’s urine. Cortisol urine tests can help with the diagnosis of various medical conditions. A doctor will ...