Electrical stimulation, ultrasound, and heat and cold therapy modality parameters, indications, and contraindications tested on the NPTAE.
About this set
39 basic cards for NPTAE Physical Therapy Assistant. Set 9 of 11 in PTA. It opens with "What is the primary therapeutic effect of continuous ultrasound?" and "Between 1 MHz and 3 MHz, which ultrasound frequency penetrates deeper into". More Healthcare and Nursing decks are listed below.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the primary therapeutic effect of continuous ultrasound?
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A thermal (heating) effect on deep tissue.- Between 1 MHz and 3 MHz, which ultrasound frequency penetrates deeper into tissue?
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1 MHz.- Which ultrasound frequency, 1 MHz or 3 MHz, is best for treating more superficial tissue?
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3 MHz.- What is the approximate treatment depth range of 1 MHz ultrasound?
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About 3 to 5 cm.- What is the approximate treatment depth range of 3 MHz ultrasound?
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About 1 to 2 cm.- In therapeutic ultrasound, what does the duty cycle describe?
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The percentage of time the sound wave is actively on during one treatment cycle.- What duty cycle is typically used to produce nonthermal (mechanical) ultrasound effects?
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20 percent or less.- What does ERA stand for on an ultrasound transducer?
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Effective radiating area.- What does BNR stand for in ultrasound equipment specifications?
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Beam nonuniformity ratio.- What does a lower BNR value indicate about an ultrasound transducer?
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More uniform energy output and less risk of hot spots or discomfort.- Therapeutic ultrasound should never be applied directly over the ____.
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eyes- Is therapeutic ultrasound contraindicated over a pregnant uterus?
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Yes, it is an absolute contraindication.- Why is ultrasound contraindicated over open epiphyseal (growth) plates in children?
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It may damage the growth plate and disrupt bone growth.- Is therapeutic ultrasound contraindicated directly over a known malignant tumor?
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Yes.- Why is ultrasound contraindicated over an implanted cardiac pacemaker?
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It may interfere with the electronic device.
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