What is the normal range of urine specific gravity?

What is the normal range of urine specific gravity?

• A. 1.000-1.020
• B. 1.020-1.040
• C. 1.010-1.030
• D. 1.030-1.050

Answer: (C)

Urine specific gravity shows how concentrated the urine is, which reflects kidney concentrating ability and hydration status. Normal values are roughly 1.005 to 1.030, though exact cutoffs can vary by lab. A range of 1.010 to 1.030 falls within this normal window, indicating urine that isn’t excessively dilute or concentrated under typical hydration. If the value were lower, it would suggest dilute urine from overhydration or diuretics; if higher, it would point to more concentrated urine from dehydration or conditions that promote water conservation.

Urine specific gravity shows how concentrated the urine is, which reflects kidney concentrating ability and hydration status. Normal values are roughly 1.005 to 1.030, though exact cutoffs can vary by lab. A range of 1.010 to 1.030 falls within this normal window, indicating urine that isn’t excessively dilute or concentrated under typical hydration. If the value were lower, it would suggest dilute urine from overhydration or diuretics; if higher, it would point to more concentrated urine from dehydration or conditions that promote water conservation.