Activity Intolerance

Definition

Activity intolerance is a NANDA-approved nursing diagnosis defined as insufficient physiologic or psychological energy to endure or complete necessary or desired daily activities. It reflects an imbalance between oxygen supply and demand at the tissue level.

Common Causes

• Chronic cardiopulmonary disease (CHF, COPD)
• Anemia and chronic fatigue
• Prolonged bed rest and deconditioning
• Depression and chronic pain

Assessment Findings

Exertional dyspnea, tachycardia disproportionate to activity, oxygen desaturation, abnormal blood pressure response, verbal report of fatigue or weakness, and inability to complete activities of daily living.

Nursing Interventions

• Plan rest periods between activities and cluster care.
• Progress activity gradually (dangle → chair → ambulation).
• Monitor vital signs before, during, and after activity; stop if HR rises more than 20 bpm above baseline or SpO2 drops below 90%.
• Refer to cardiac rehab or pulmonary rehab as appropriate.

NCLEX Relevance

Commonly tested in CHF, COPD, and post-op case studies. Recognize it as a functional nursing diagnosis requiring energy conservation, not simply more activity.