What is the typical duration for a standard therapeutic ultrasound treatment?

• A. 5–10 minutes per treatment area
• B. 15–20 minutes
• C. 25–35 minutes
• D. 40–60 minutes

Answer: (A)

Typically, therapeutic ultrasound is applied for about 5–10 minutes per treatment area. This duration provides enough energy to produce the desired thermal or nonthermal effects while staying within safe exposure limits. If the target area is larger than the transducer’s effective radiating area, clinicians treat adjacent sections in sequence rather than extending the time on one spot, to avoid overheating and ensure even energy distribution. Longer times (15–60 minutes) aren’t standard for a single area; they’re avoided in favor of treating multiple smaller areas.