Respiratory Failure

Respiratory failure means the lungs cannot adequately exchange gases — either failing to deliver enough oxygen or to remove enough carbon dioxide. It is a medical emergency that requires hospital-level care.

Table of Contents

Quick Facts

  • ICD-10: J96
  • Types: Type 1 (hypoxic), Type 2 (hypercapnic)
  • Treatment: Oxygen, ventilation, treat cause

When to Call 911

Call 911 for:
  • Severe shortness of breath
  • Inability to speak in full sentences from breathlessness
  • Bluish lips or fingers
  • Confusion or extreme drowsiness
  • Chest pain with breathing difficulty

Types

  • Type 1 (hypoxic) — low blood oxygen; causes include pneumonia, ARDS, pulmonary embolism, heart failure.
  • Type 2 (hypercapnic) — elevated carbon dioxide; causes include COPD exacerbation, severe asthma, neuromuscular disease.

Causes

  • Pneumonia
  • COPD exacerbation
  • Severe asthma attack
  • Pulmonary embolism
  • Acute respiratory distress syndrome (ARDS)
  • Heart failure with pulmonary edema
  • Drug overdose (opioids, sedatives)
  • Neuromuscular disorders (Guillain-Barré, ALS)
  • Chest trauma

Treatment

  • Supplemental oxygen
  • Noninvasive ventilation (BiPAP/CPAP)
  • Mechanical ventilation if severe
  • Treatment of the underlying cause (antibiotics, bronchodilators, anticoagulants, etc.)

When to See a Doctor

Any severe shortness of breath requires emergency care. Chronic respiratory failure (e.g., late-stage COPD) is managed with specialists and may involve home oxygen or noninvasive ventilation.

Related Conditions

Pneumonia

Major cause

 COPD

Common chronic cause

 Shortness of Breath

Cardinal symptom

 Pulmonary Embolism

Important emergency cause

Frequently Asked Questions

Can respiratory failure be reversed?

Acute respiratory failure is often fully reversible if the underlying cause is treated quickly. Chronic respiratory failure may be ongoing but is manageable with appropriate care.

Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Thoracic Society. Respiratory Failure Patient Information.