A clinician treating a patient in an outpatient clinic uses phonophoresis with hydrocortisone for radial wrist extensor pain and swelling. Which information is MOST important to be aware of for safe treatment?

• A. Length of time pain and swelling have been present
• B. Prior surgeries of the client
• C. Activities that aggravate the pain and swelling
• D. Medications and medication allergies of the client

Answer: (D)

Knowing medications and medication allergies is essential before using phonophoresis with hydrocortisone because ultrasound-facilitated delivery can increase the amount of topical medication that enters the system. If a patient is taking other drugs that interact with corticosteroids, or has allergies to hydrocortisone or to components in the topical preparation or gel, there is a real risk of adverse reactions or unexpected systemic effects. This safety information also helps identify potential sensitivities to propellants or additives in the preparation. While the duration of symptoms, prior surgeries, and activities that aggravate pain are important for diagnosis and treatment planning, they do not pose the same immediate safety concerns during the procedure as knowing what medications the patient takes and what they are allergic to.