What should the therapist recommend when the patient's SpO2 remains low despite therapy adjustments?

When a patient's SpO2 remains low despite therapy adjustments, evaluating for the presence of a pneumothorax is a crucial step. A pneumothorax can significantly impede the patient's ability to ventilate and oxygenate properly, leading to a drop in oxygen saturation levels. This condition occurs when air enters the pleural space, which may cause lung collapse and compromise respiratory function.

By assessing for pneumothorax, the therapist can determine if there is an underlying issue that needs to be addressed urgently. If a pneumothorax is present, it may require interventions such as chest tube placement or other emergency treatments to restore normal lung function and improve oxygenation.

In contrast, considering alternative modalities like CPAP, decreasing the FIO2, or increasing the respiratory rate may not be appropriate actions until ruling out critical conditions such as pneumothorax, which directly influences the patient’s oxygenation status. Hence, assessing for pneumothorax becomes a priority in managing persistent low SpO2 levels.