A urine drug test is used to detect the presence of illegal and prescription drugs in urine. It’s also known as a urine drug screen. In a urine drug test, a sample of urine is sent to a lab. A tester ...

Osmolality is the concentration of all particles in a fluid. For example, thick, sugary syrup has significantly higher osmolality than a cup of water with just a pinch of sugar. The urine osmolality ...

Diabetes insipidus is a rare condition that affects the body’s ability to balance fluid levels properly. The condition can lead to excess urine production and low urine osmolality, which refers to the ...

Background Hydration status is one measure used to determine risk of heat illness, such as heat stroke. The most common assessment used is urine specific gravity. However, this test presents inherent ...

Urine color is mainly determined by chemical content and concentration. Urine is usually yellow due to the naturally occurring pigment urobilin, formed as a result of heme breakdown. [11] Clinically, ...