Colorado CNA Practice Exam

During a physical examination, why might an examiner observe a patient’s breathing without their knowledge?

1. To record the sound of their breath

2. To ensure accurate measurement of the patient’s respiration rate

3. To test the functionality of the stethoscope

4. To distract the patient from anxiety

The correct answer is: To record the sound of their breath

Observing a patient’s breathing without their knowledge primarily serves the purpose of ensuring accurate measurement of the patient’s respiration rate. When the patient is unaware that they are being observed, they are less likely to alter their breathing pattern due to anxiety or self-consciousness. This allows for a more authentic assessment of their respiratory function, which is crucial for identifying any potential health issues. While recording the sound of breath may be a component of respiratory assessment, the intent is more about monitoring the rate and pattern of breathing, in order to gather essential clinical information. The functionality of the stethoscope is typically evaluated in a more direct manner and does not necessarily require patient unawareness. Similarly, distracting a patient from anxiety can play a role in alleviating stress, but it is not the primary reason for observing unobtrusively. Therefore, the focus on accurate measurement aligns directly with the standard practices of a physical examination.