Urine specific gravity

Specific gravity, in the context of clinical pathology, is a urinalysis parameter commonly used in the evaluation of kidney function and can aid in the diagnosis of various renal diseases.

For explanation of the ratio of densities of two materials, see Relative density.
Urine specific gravity
Reading of a urine specific gravity of ~1.024 via a handheld refractometer. SG measurement is taken by reading the boundary between the dark and light fields against the graduations on the left column.
Purposeevaluation of kidney function
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