Which statement best describes the instillation route for medications?

Which statement best describes the instillation route for medications?

• A. Liquid administration through the eyes, nose, or ears
• B. Injection directly into a vein
• C. Oral ingestion through the mouth
• D. Application to the skin surface

Answer: (A)

Instillation is the method of delivering liquid medications by dropping them into a body opening or cavity, such as the eyes, nose, or ears. This route targets the mucous membranes directly and is used for local effects (eye drops on the conjunctiva, nasal drops on the nasal mucosa, ear drops in the ear canal). Some absorption through these membranes can occur, but the main purpose is direct application to the site. This is different from injecting medication into a vein (parenteral), swallowing a pill or liquid (oral/enteral), or applying a cream or ointment to the skin (topical). So liquid administration through the eyes, nose, or ears best describes the instillation route.

Instillation is the method of delivering liquid medications by dropping them into a body opening or cavity, such as the eyes, nose, or ears. This route targets the mucous membranes directly and is used for local effects (eye drops on the conjunctiva, nasal drops on the nasal mucosa, ear drops in the ear canal). Some absorption through these membranes can occur, but the main purpose is direct application to the site. This is different from injecting medication into a vein (parenteral), swallowing a pill or liquid (oral/enteral), or applying a cream or ointment to the skin (topical). So liquid administration through the eyes, nose, or ears best describes the instillation route.