California PTA Laws Practice Exam

Which of the following is NOT a recognized way to administer topical medications by a physical therapist?

1. Iontophoresis

2. Phonophoresis

3. Oral ingestion

4. Direct application

The correct answer is: Oral ingestion

Topical medications are typically administered through non-invasive methods that allow drugs to penetrate the skin and deliver therapeutic effects directly on the affected area. Iontophoresis employs a small electrical current to enhance the absorption of medication through the skin, while phonophoresis uses ultrasound waves to facilitate the delivery of medications through the skin. Direct application is straightforward and involves applying the medication directly onto the skin, allowing for localized treatment. Oral ingestion is not a recognized method for administering topical medications in the context of physical therapy. This method involves swallowing a medication for systemic effects rather than targeting a specific site through the skin. Therefore, it does not fall under the category of topical application methods recognized in physical therapy practice. Understanding these distinctions is crucial for effective patient care and accurately applying treatment modalities.