What treatment is typically required for a small pneumothorax, defined as less than 20% of lung collapsed?

For a small pneumothorax, particularly one that is less than 20% of the lung collapsed, the typical management approach involves bedrest and limited physical activity. This option is appropriate because small pneumothoraxes often resolve spontaneously without the need for invasive procedures. By minimizing physical activity, the risk of further stress on the lung is reduced, which can promote healing and allow the air in the pleural space to be reabsorbed over time.

Monitoring is typically recommended, along with education about warning signs such as increased shortness of breath or chest pain, which may indicate progression of the pneumothorax. In cases where the pneumothorax is larger or symptomatic, other interventions may be needed. However, for small, uncomplicated pneumothoraxes, conservative management with rest is sufficient.