PAM Ultrasound & Phonophoresis

Question 1

What is the main purpose of ultrasound therapy in physical therapy?

Accepted Answer

To stimulate deep tissue healing and reduce pain.

Answer

Ultrasound therapy uses high-frequency sound waves to penetrate deep into tissues, promoting cellular activity and increasing local blood flow. This deep heating and mechanical effect helps to accelerate tissue healing, reduce pain, and decrease inflammation in various musculoskeletal conditions. It is distinct from electrical stimulation.

Question 2

What is phonophoresis?

Accepted Answer

The use of ultrasound to deliver medication into tissues.

Answer

Phonophoresis is a therapeutic technique that combines ultrasound therapy with topical medication application. The ultrasound waves enhance the permeability of the skin, allowing for deeper penetration and localized delivery of medication into the underlying tissues. This method provides targeted drug delivery without injections.

Question 3

What is a contraindication for ultrasound therapy?

Accepted Answer

Over areas with malignant tumors or active bleeding.

Answer

Ultrasound therapy is contraindicated over areas with malignant tumors or active bleeding due to its ability to increase cellular activity and blood flow. In the presence of malignancy, this could potentially promote tumor growth or metastasis. Over active bleeding, it could exacerbate hemorrhage, making it unsafe for these conditions.

Question 4

What is the optimal frequency for ultrasound therapy?

Accepted Answer

1 MHz for deep tissues and 3 MHz for superficial tissues.

Answer

The optimal frequency for ultrasound therapy depends on the target tissue depth. A frequency of 1 MHz is used for deeper tissues (up to 5 cm) because its longer wavelength allows for greater penetration. Conversely, 3 MHz is used for superficial tissues (1-2 cm) as its shorter wavelength concentrates energy closer to the surface.

Question 5

What is a potential benefit of phonophoresis over traditional drug delivery methods?

Accepted Answer

It allows non-invasive, targeted drug delivery.

Answer

A significant benefit of phonophoresis is its ability to deliver medication non-invasively and directly to the targeted area. This localized delivery can reduce systemic side effects often associated with oral medications and allows for higher concentrations of the drug at the site of injury or inflammation. It offers a precise and comfortable alternative.

(PAM) Physical Agent Modalities Certification Practice Test

(PAM) Physical Agent Modalities Certification Practice Test

PAM Ultrasound & Phonophoresis