What does a 100% duty cycle indicate in continuous ultrasound?

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Prepare for the BOC Domain 4 Treatment and Rehab Test. Access study materials like flashcards and multiple choice questions with explanations. Enhance your understanding and be ready to ace the exam!

Multiple Choice

What does a 100% duty cycle indicate in continuous ultrasound?

Explanation:
Duty cycle is the fraction of time the ultrasound transducer is emitting during each cycle. A 100% duty cycle means the device is on the entire time, so emission is continuous. Because energy is delivered without breaks, tissue heating occurs, leading to thermal effects. In contrast, pulsed emission (duty cycle less than 100%) reduces heating and emphasizes nonthermal, mechanical effects. So the correct interpretation is that sound waves are present and produce thermal effects.

Duty cycle is the fraction of time the ultrasound transducer is emitting during each cycle. A 100% duty cycle means the device is on the entire time, so emission is continuous. Because energy is delivered without breaks, tissue heating occurs, leading to thermal effects. In contrast, pulsed emission (duty cycle less than 100%) reduces heating and emphasizes nonthermal, mechanical effects. So the correct interpretation is that sound waves are present and produce thermal effects.

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