Clinical Laboratory Science Practice Test 2026 – Urinalysis and Body Fluids

Urine specific gravity shows how concentrated the urine is and reflects the kidney’s ability to concentrate water. A value of 1.035 is higher than normal (typical range roughly 1.005–1.030), indicating the urine is unusually concentrated. This condition is called hypersthenuria, which describes highly concentrated urine often seen with dehydration or increased antidiuretic hormone activity. The other terms describe urine output rather than concentration: anuria is no urine production, oliguria is reduced urine production, and polyuria is excessive urine production. So the term that best fits a urine specific gravity of 1.035 is hypersthenuria.