Which intervention might be considered when oxygen therapy is insufficient before intubation?

Which intervention might be considered when oxygen therapy is insufficient before intubation?

• A. Non-invasive ventilation
• B. Bronchodilator only
• C. Nebulized saline only
• D. Oxygen flow alone

Answer: (A)

When oxygen alone isn’t enough to keep gas exchange adequate, using non-invasive ventilation provides real breathing support by delivering pressurized air through a mask. This positive pressure helps keep airways open, recruits collapsed alveoli, improves oxygenation, and reduces the work of breathing. It can buy time and often improves ventilation before deciding on intubation, and in suitable patients it may avoid invasive ventilation altogether. The other approaches don’t offer the same balance. A bronchodilator helps with airway tone but doesn’t directly correct hypoxemia or support ventilation when respiration is failing. Nebulized saline isn’t a targeted treatment for acute respiratory failure. Relying on oxygen flow alone improves oxygen delivery but doesn’t address the underlying ventilation deficit or alveolar recruitment, which is often needed when oxygen therapy is insufficient.

When oxygen alone isn’t enough to keep gas exchange adequate, using non-invasive ventilation provides real breathing support by delivering pressurized air through a mask. This positive pressure helps keep airways open, recruits collapsed alveoli, improves oxygenation, and reduces the work of breathing. It can buy time and often improves ventilation before deciding on intubation, and in suitable patients it may avoid invasive ventilation altogether.

The other approaches don’t offer the same balance. A bronchodilator helps with airway tone but doesn’t directly correct hypoxemia or support ventilation when respiration is failing. Nebulized saline isn’t a targeted treatment for acute respiratory failure. Relying on oxygen flow alone improves oxygen delivery but doesn’t address the underlying ventilation deficit or alveolar recruitment, which is often needed when oxygen therapy is insufficient.