Which urine specific gravity value falls within the normal reference range?

Which urine specific gravity value falls within the normal reference range?

• A. 1.035
• B. 1.012
• C. 1.056
• D. 1.008

Answer: (B)

Urine specific gravity shows how concentrated or dilute urine is, reflecting how well the kidneys are concentrating urine and the body's hydration status. A typical normal range is about 1.005–1.030 (some sources use 1.010–1.030). The value 1.012 falls squarely within that normal range, indicating urine concentration at a normal level with no evident over- or under-concentration. Values around 1.035 or 1.056 are higher than normal, signaling concentrated urine which can occur with dehydration, reduced fluid intake, or increased ADH activity. A value like 1.008 is at or just below the lower end of many reference ranges, suggesting dilute urine, which can occur with excessive fluid intake or diuretic use.

Urine specific gravity shows how concentrated or dilute urine is, reflecting how well the kidneys are concentrating urine and the body's hydration status. A typical normal range is about 1.005–1.030 (some sources use 1.010–1.030). The value 1.012 falls squarely within that normal range, indicating urine concentration at a normal level with no evident over- or under-concentration.

Values around 1.035 or 1.056 are higher than normal, signaling concentrated urine which can occur with dehydration, reduced fluid intake, or increased ADH activity. A value like 1.008 is at or just below the lower end of many reference ranges, suggesting dilute urine, which can occur with excessive fluid intake or diuretic use.