National Physical Therapy Examination (NPTE) Practice Exam

In a physical therapy assessment, which assessment would be least effective in determining atelectasis?

1. Auscultation for adventitious sounds

2. Measurement of respiratory rate

3. Percussion over the lung fields

4. Observation of the effort of breathing

The correct answer is: Auscultation for adventitious sounds

To determine the effectiveness of various assessment methods in identifying atelectasis, it’s essential to understand the nature of this condition. Atelectasis refers to the complete or partial collapse of a lung or lobe, leading to reduced air exchange and decreased lung volume. Auscultation for adventitious sounds is a common method to identify abnormalities in lung function. In cases of atelectasis, patients may demonstrate diminished or absent breath sounds over the affected area due to the lack of air flow. Therefore, this technique can provide valuable insight into the presence of atelectasis. The measurement of respiratory rate is helpful in assessing a patient’s overall respiratory function. Although a rapid respiratory rate can indicate respiratory distress—which may be associated with atelectasis—it may not directly indicate the presence of lung collapse or the severity of the condition. Percussion over the lung fields can provide important information about lung density. In cases of atelectasis, the lung area may produce a dull sound upon percussion due to the loss of air, making this method useful in identifying the condition. Observation of the effort of breathing can reveal if the patient is experiencing any distress or increased work of breathing, which could suggest atelectasis as well. Changes in respiratory mechanics can be notably observed in