Final answer:
A Oxygen saturation is greater than 90% Correct Answer (Blank). The best indicator that the therapy was effective in treating shortness of breath due to asthma is oxygen saturation greater than 90%.
Step-by-step explanation:
The best indicator that the therapy was effective in treating the client's shortness of breath due to asthma is A - oxygen saturation is greater than 90%. Oxygen saturation is a measure of the amount of oxygen carried by the red blood cells. In a healthy individual, oxygen saturation should be above 90%. Since the client received albuterol via nebulizer, which helps to open up the airways and improve airflow, an increase in oxygen saturation would indicate that the therapy was effective.