What does it mean if a solution is hypertonic?

A hypertonic solution is characterized by having a higher concentration of solutes compared to another solution, typically one that is within a cell. This means that when a cell is placed in a hypertonic solution, water will move out of the cell and into the surrounding solution in an effort to equalize solute concentrations on both sides of the cell membrane. This causes the cell to shrink or crenate.

Understanding the concept of tonicity is important in many biological processes, particularly in nursing and medical fields, as it has significant implications for fluid dynamics within the body. Recognizing the role that hypertonic solutions play in processes such as intravenous fluid administration can be crucial for patient care.