Urea
Urea is a waste product formed from protein metabolism and excreted by the kidneys. Blood urea levels help assess kidney function and hydration status.
Why a doctor may order this
To assess kidney function, monitor renal disease, or evaluate dehydration and protein metabolism.
Why you may need this
If you are over 40, have diabetes, high blood pressure, or family kidney disease — checks how well your kidneys filter waste.
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