What BUN level is expected in a client who is dehydrated?

In dehydration, the body loses fluid, leading to a reduction in plasma volume. This decrease in volume affects the kidneys and can subsequently elevate the Blood Urea Nitrogen (BUN) level. The BUN level reflects the amount of urea nitrogen in the blood, which is a waste product formed from the breakdown of proteins. As the kidneys concentrate urine in response to dehydration, the BUN level rises because there is less fluid available for dilution.

A BUN level greater than 24 mg/dL indicates significant dehydration and possibly an increase in protein metabolism or impaired kidney function, both of which can occur in a dehydrated state. This elevation serves as a clinical indicator for healthcare professionals to assess hydration levels and the overall metabolic state of the client. Understanding BUN levels helps in diagnosing and managing fluid balance and potential kidney issues effectively.