Physical Therapy Contraindication: Low Hemoglobin / Hematocrit

Relative Contraindication Thresholds

Hemoglobin < 10 g/dL or Hematocrit < 30% is considered a relative contraindication to therapeutic exercise and physical therapy.

Physiologic Rationale

• Reduced oxygen‑carrying capacity → inadequate tissue oxygenation during exertion.
• Impaired exercise tolerance: early fatigue, dyspnea, tachycardia.
• Risk of syncope, falls, or cardiac ischemia in vulnerable patients.

Clinical Decision‑Making

• Relative means therapy may proceed with modifications, not absolute prohibition.
• Assess: symptoms at rest, functional baseline, etiology of anemia, cardiac/pulmonary reserve.
• Modify: lower intensity, shorter duration, seated/recumbent exercises, supplemental O₂ if prescribed.
• Monitor: SpO₂, heart rate, Borg RPE, symptoms during each session.
• Communicate with referring physician; hold therapy if acute bleed, active hemolysis, or unstable cardiovascular status.

When to Defer

• Hb < 8 g/dL (or Hct < 24%) without transfusion plan.
• Active cardiac ischemia, uncontrolled heart failure, severe COPD exacerbation.
• Patient reports chest pain, severe SOB, or presyncope with minimal activity.

Documentation: Record rationale, modifications, and physician clearance if obtained.