Urea (spot)
Spot urine urea measures urea concentration in a random urine sample and can be used in conjunction with serum urea to assess nitrogen balance or renal function.
Why a doctor may order this
To evaluate renal urea excretion or as part of nitrogen balance assessment.
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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