Which statement best describes the overall nature of MIST therapy?

Which statement best describes the overall nature of MIST therapy?

• A. It requires direct skin contact and high-frequency US
• B. It uses non-contact low-frequency US delivered through a saline mist
• C. It relies on thermal heating to treat tissue
• D. It uses mechanical scrubbing of tissue

Answer: (B)

MIST therapy is defined by delivering ultrasound energy without direct skin contact, using a saline mist to carry the energy to the tissue. The key point is the non-contact approach combined with low-frequency ultrasound. Because the energy is low-frequency, the treatment relies on non-thermal mechanical effects—like acoustic streaming and micro-cavitation in tissue fluids—rather than heating the tissue. This helps promote tissue repair and blood flow without the thermal buildup you’d get with higher-frequency, contact-based ultrasound. It also avoids using gels and direct skin contact, which is why it’s described as non-contact via a saline mist. It’s not about thermal heating or mechanical scrubbing, so those options don’t fit as well.

MIST therapy is defined by delivering ultrasound energy without direct skin contact, using a saline mist to carry the energy to the tissue. The key point is the non-contact approach combined with low-frequency ultrasound. Because the energy is low-frequency, the treatment relies on non-thermal mechanical effects—like acoustic streaming and micro-cavitation in tissue fluids—rather than heating the tissue. This helps promote tissue repair and blood flow without the thermal buildup you’d get with higher-frequency, contact-based ultrasound. It also avoids using gels and direct skin contact, which is why it’s described as non-contact via a saline mist. It’s not about thermal heating or mechanical scrubbing, so those options don’t fit as well.