What should be done if the patient's ABG shows pH 7.50 and PaCO2 of 30 torr?

The situation presented indicates a respiratory alkalosis, as evidenced by a pH of 7.50 (which is above the normal range of 7.35 to 7.45) and a low PaCO2 of 30 torr (normal range is approximately 35-45 torr). In respiratory alkalosis, the increase in pH is due to a decrease in carbon dioxide levels, often caused by hyperventilation.

In this context, considering intervention for respiratory alkalosis is essential. This may involve addressing the underlying cause of the hyperventilation, providing reassurance to the patient, or implementing breathing techniques to help stabilize their respiratory rate and decrease the pH to normal levels. Monitoring and correcting respiratory alkalosis can prevent potential complications.

The other choices provided would not specifically address the underlying issue of respiratory alkalosis. For instance, increasing FIO2 could be unnecessary if oxygen saturation is adequate and might exacerbate the situation. Initiating bronchodilator therapy would only be relevant if there was evidence of bronchospasm or an obstructive airway issue. Continuing the current treatment plan without reassessing the patient’s ABG results could leave the condition unaddressed, which is not ideal in this scenario.