Which of the following is a contraindication for ultrasound?

Which of the following is a contraindication for ultrasound?

• A. Acute ankle sprain
• B. Mild skin irritation
• C. Neoplasm
• D. Reversible joint stiffness

Answer: (C)

Ultrasound delivers energy that can heat tissue and also create non-thermal effects that stimulate tissue activity. Heating or stimulating cells in a tumor area can potentially influence tumor behavior, so applying ultrasound over a neoplasm is avoided. This makes neoplasm an absolute contraindication for ultrasound therapy. Other options don’t pose the same strict restriction. An acute ankle sprain isn’t inherently a contraindication; ultrasound can be used cautiously in acute injuries to manage inflammation and promote healing. Mild skin irritation isn’t a reason to avoid ultrasound entirely; the clinician would adjust intensity or use protective measures. Reversible joint stiffness can often benefit from ultrasound to improve tissue extensibility and ROM, so it’s not contraindicated.

Ultrasound delivers energy that can heat tissue and also create non-thermal effects that stimulate tissue activity. Heating or stimulating cells in a tumor area can potentially influence tumor behavior, so applying ultrasound over a neoplasm is avoided. This makes neoplasm an absolute contraindication for ultrasound therapy.

Other options don’t pose the same strict restriction. An acute ankle sprain isn’t inherently a contraindication; ultrasound can be used cautiously in acute injuries to manage inflammation and promote healing. Mild skin irritation isn’t a reason to avoid ultrasound entirely; the clinician would adjust intensity or use protective measures. Reversible joint stiffness can often benefit from ultrasound to improve tissue extensibility and ROM, so it’s not contraindicated.