The ratio is derived by dividing the blood urea nitrogen (BUN) worth by the creatinine worth. As an illustration, a BUN of 20 mg/dL and a creatinine of 1 mg/dL yields a ratio of 20. Each measurements are routinely obtained by way of a typical blood take a look at.
Evaluating these two values supplies useful insights into kidney operate and general hydration standing. Traditionally, this calculation has served as an important diagnostic software, serving to healthcare professionals differentiate between varied causes of kidney dysfunction, reminiscent of dehydration, decreased blood circulate to the kidneys, or intrinsic kidney illness. A standard ratio sometimes falls inside a particular vary, with deviations suggesting potential underlying points.