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Calculate osmolar clearance and free water clearance

A 35-year-old female complains to her doctor that she is suffering from frequent
urination. Her resting blood pressure and heart rate are 120/80 and 72, respectively.
Her plasma creatinine is 0.85 mg/dl, urine flow is 5 ml/min, and urine osmolarity is
190 mOsm/l. Her plasma osmolarity is 290 mOsm/l. Calculate her osmolar clearance
and free water clearance. Is her urine dilute or concentrated?

Solution Preview

Osmolar clearance

1 osmolar = 1 osmol / liter

OsmCl = (Urine_Osm / ...

Solution Summary

Osmolar clearance

1 osmolar = 1 osmol / liter

OsmCl = (Urine_Osm / Serum_Osm) * Urine_Per_Day / 24

$2.19