Question

Which of the following are advantages of shortwave diathermy over 1 MHz ultrasound? (select all that apply)

a. larger area heated
b. more uniform energy delivery
c. less contraindications
d. retains heat 2-3x longer
e. provides deeper heating

Answer 1

Shortwave diathermy offers advantages over 1 MHz ultrasound in heating a larger area, providing more uniform energy delivery, and offering deeper tissue penetration. It is particularly beneficial for treating muscular and arthritic conditions.

Step-by-step explanation:

The question asks about the advantages of shortwave diathermy over 1 MHz ultrasound. Shortwave diathermy can offer several advantages such as larger area heated, more uniform energy delivery, and the potential for deeper heating of tissues. These benefits stem from the nature of microwaves to penetrate deeper than ultrasound waves, which are typically at frequencies of 0.8 to 1 MHz. Additionally, microwave diathermy is used for treating conditions such as muscle pains, spasms, and rheumatoid arthritis due to its deep heating capabilities.

Answer 2

Shortwave diathermy has the advantages of heating a larger area, delivering more uniform energy, and providing deeper tissue penetration compared to 1 MHz ultrasound.

Step-by-step explanation:

The advantages of shortwave diathermy over 1 MHz ultrasound include:

• Larger area heated: Shortwave diathermy can treat a larger area simultaneously compared to the focused treatment area of ultrasound.
• More uniform energy delivery: Due to its nature, shortwave diathermy can provide a more uniform distribution of heat within the treated area.
• Provides deeper heating: Microwaves in shortwave diathermy can penetrate deeper into tissue than ultrasound, making it effective for conditions such as muscular pains, spasms, tendonitis, and rheumatoid arthritis.

There is no clear evidence that shortwave diathermy retains heat longer or has fewer contraindications than ultrasound diathermy.