What is the recommended activity level when hemoglobin is less than 8 g/dL?

• A. Light exercise
• B. Moderate exercise
• C. No exercise
• D. Normal activity

Answer: (C)

When hemoglobin is that low, the blood’s oxygen-carrying capacity is reduced, so the body cannot meet the higher oxygen demands of exercise. Exercise raises heart rate and cardiac output, increasing oxygen delivery needs; with Hb below 8 g/dL, tissues can become hypoxic, and symptoms like fatigue, dizziness, or chest discomfort may appear, risking more serious cardiovascular strain. Because of these risks, the safest approach is to avoid exercise and rest while the anemia is treated or until hemoglobin rises to a safer level. Once the clinician clears it and Hb improves, activity can be gradually reintroduced with careful monitoring.