Certified Respiratory Therapist Practice Exam

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Prepare for the Certified Respiratory Therapist Exam with our engaging quiz, complete with multiple-choice questions and detailed explanations. Boost your confidence and knowledge before test day!

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What is the recommended frequency to apply vibrations to a patient when using a mechanical percussor?

10-15 Hz
20-30 Hz
30-40 Hz
Higher available frequency

The correct answer is: 10-15 Hz

When using a mechanical percussor, the recommended frequency to apply vibrations typically falls within the range of 10-15 Hz. This frequency range is considered effective for enhancing mucus clearance from the airways without causing patient discomfort. Lower frequencies, such as those in the 10-15 Hz range, allow for the mechanical percussor to create a rhythmical vibration that aids in loosening secretions. Frequencies that are too high may not provide the same level of effectiveness for secretion clearance and can risk causing discomfort to the patient, potentially leading to a negative experience during treatment. Thus, adhering to the 10-15 Hz frequency enhances the therapeutic benefits of using a mechanical percussor while ensuring patient safety and comfort.