Final answer:
The U/P ratio of hyperosmotic urine is greater than 1, indicating that the urine is more concentrated in solutes compared to plasma.
Step-by-step explanation:
The U/P ratio of hyperosmotic urine is indicative of the urine's concentration in comparison to plasma. Hyperosmotic urine, which would have a high urine osmolality test result, suggests that the kidneys are excreting less water and therefore, the urine contains a higher concentration of dissolved particles. Given that the specific gravity of urine is greater than pure water due to the presence of solutes and that urine osmolarity can be as high as 1200 mOsmol/L, it is evident that for hyperosmotic urine the U/P ratio, representing the osmolarity or concentration of solutes in urine (U) to the osmolarity or concentration of solutes in plasma (P), would be greater than 1 as the urine is more concentrated than the plasma.