CSSD Practice Exam 2026 – Complete Study Resource

Hydrated urine specific gravity (USG) typically indicates a more dilute urine, which correlates with good hydration levels in an individual. A USG of less than 1.020 suggests that the urine is more concentrated with water relative to solutes, reflecting the body’s ability to excrete excess fluids adequately.

In a hydrated state, the kidneys will produce urine with a lower specific gravity due to the increased amount of water reabsorbed, yielding a URG that falls below 1.020. This is essential for maintaining proper fluid balance and preventing dehydration.

The other values mentioned—greater than 1.020, equal to 1.000, and between 1.000 and 1.005—either indicate concentrated urine, which is not consistent with hydration, or represent very low concentrations, which can be associated with diluted urine but generally don't reflect a properly hydrated state. The range above 1.020 can indicate dehydration or other metabolic states where concentration of solutes is elevated.

Understanding these values helps in assessing a person's hydration status and can guide clinical decisions regarding fluid management.