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Urine-to-Plasma and Urine-to-Serum Osmolality Ratios

Specialty:

Nephrology, Urology, Obstetrics & Gynecology, Pedatrics, Genetics
Clinical Laboratory

Objective:

ICD-10:

Description:

The urine-to-plasma osmolality ratio can help in the diagnosis of renal dysfunction and polyurias. It is more accurate than urine osmolality or urine specific gravity alone in the distinction of prerenal azotemia from acute tubular necrosis. It is related to the osmolal clearance.

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