A/an ___________ solution has greater osmolarity than blood.

A solution that has greater osmolarity than blood is referred to as hypertonic. In a hypertonic solution, the concentration of solutes is higher compared to that in blood serum, which causes water to move out of cells into the surrounding solution by osmosis. This can lead to cell shrinkage, as water leaves the cells to balance the solute concentrations.

In the context of medical treatment, hypertonic solutions are often used to treat patients with hyponatremia (low sodium levels) or to help reduce cerebral edema because they can draw fluid out of swollen cells. Understanding the concept of osmolarity and tonicity is crucial for healthcare professionals, as it helps in determining the appropriate intravenous fluids to administer based on a patient’s condition.