PAM Ultrasound & Phonophoresis 3

Question 1

When selecting ultrasound parameters for an acute inflammatory condition, the MOST appropriate setting is:

Accepted Answer

Pulsed mode (20%), 0.5 W/cm², 3 MHz

Answer

Pulsed mode minimizes thermal effects while low intensity and 3 MHz limit penetration to superficial inflamed tissue, making it safe for acute conditions.

Question 2

The effective radiating area (ERA) of an ultrasound transducer refers to:

Accepted Answer

The area that produces clinically significant acoustic output

Answer

ERA is the portion of the transducer face that actually emits therapeutic acoustic energy, typically smaller than the total transducer face.

Question 3

Which medication is most commonly used for phonophoresis in the treatment of musculoskeletal inflammation?

Accepted Answer

Hydrocortisone 1%

Answer

Hydrocortisone 1% cream is the most widely studied and commonly used agent for phonophoresis targeting musculoskeletal inflammation.

Question 4

The spatial average temporal average (SATA) intensity is used to:

Accepted Answer

Describe average power output over time and space

Answer

SATA intensity represents the average intensity both across the beam's cross-section and averaged over the pulse cycle, indicating overall energy delivery.

Question 5

An ultrasound transducer should be moved continuously during treatment primarily to:

Accepted Answer

Prevent hot spots from standing wave formation

Answer

Continuous transducer movement prevents standing waves that can create dangerous focal areas of high intensity (hot spots) in tissue.

(PAM) Physical Agent Modalities Certification Practice Test

(PAM) Physical Agent Modalities Certification Practice Test

PAM Ultrasound & Phonophoresis 3