Final answer:
Hydration is recommended to reduce blood viscosity in polycythemia, a condition characterized by an elevated red blood cell count. Adequate water intake helps maintain plasma volume and promotes better blood flow. Medications may also be prescribed for management.
Step-by-step explanation:
Polycythemia is a condition characterized by an elevated red blood cell count and increased blood viscosity. To reduce blood viscosity in polycythemia, hydration is recommended. Adequate water intake helps maintain plasma volume and prevents excessive thickening of the blood. This reduces resistance, pressure, and promotes better blood flow. In certain cases, medications may also be prescribed to manage the condition.