What is urine specific gravity measurement known as?

The correct answer is urinometry, which specifically refers to the measurement of the specific gravity of urine. This measurement is crucial in evaluating the concentration of solutes in urine, which can provide important information about a person’s hydration status and kidney function. By determining the specific gravity, healthcare providers can assess how well the kidneys are concentrating urine, which can indicate various health conditions.

Urinometry is typically performed using a device called a urinometer or refractometer, which helps measure the density of urine compared to that of water. A higher specific gravity may suggest dehydration or an increased concentration of substances in the urine, while a lower specific gravity can indicate overhydration or issues with kidney filtration.

Other terms in the choices relate to different medical assessments. Bone density measurement is associated with evaluating bone health rather than fluid concentration. Hydrometry refers more broadly to the measurement of specific gravities of liquids in general, not specifically urine. Hydration assessment is a broader term that encompasses various evaluations of fluid balance but does not specifically refer to the measurement of urine specific gravity. Thus, urinometry is the most accurate term for this specific measurement.