Final answer:
The nurse would determine whether the percussion treatments for cystic fibrosis are effective by evaluating oxygen saturation.
Step-by-step explanation:
The nurse would determine whether the percussion treatments for cystic fibrosis are effective by evaluating oxygen saturation.
Percussion treatments for cystic fibrosis aim to loosen and mobilize mucus in the lungs to improve breathing. By monitoring the oxygen saturation levels, the nurse can assess the efficiency of the treatment in improving the oxygenation of the blood. If the treatment is effective, the oxygen saturation levels should improve.
Other options like monitoring blood pressure, assessing respiratory rate, and observing sputum production can provide additional information about the patient's condition but may not directly indicate the effectiveness of the percussion treatments for cystic fibrosis.