Urine specific gravity measures the concentration of dissolved substances in your urine. It reflects how well your kidneys are concentrating or diluting urine.
Category: Urinalysis
Also known as: specific gravity, urine specific gravity, sp gr, sp. gr., urine sp gravity, sg
Reference range: 1.005–1.03 ratio (Source: ABIM)
Standard unit: ratio
High values may indicate
High specific gravity may indicate dehydration, heart failure, kidney arterial stenosis, or excess substances like glucose or protein in the urine.
Low values may indicate
Low specific gravity may indicate overhydration, diabetes insipidus, kidney damage, or excessive fluid intake.