HOSA Dental Terminology Practice

What does 'infusion' refer to in the medical field?

1. The withdrawal of fluids from a patient

2. Therapeutic introduction of a fluid into a vein

3. The application of a topical medication

4. A method for taking dental impressions

The correct answer is: Therapeutic introduction of a fluid into a vein

In the medical field, 'infusion' specifically refers to the therapeutic introduction of a fluid into a vein. This procedure is commonly used to deliver medications, nutrients, or fluids directly into the bloodstream, ensuring rapid absorption and effectiveness. Infusion is essential in situations requiring immediate or controlled treatment, such as when a patient is unable to take oral medications or needs hydration or electrolytes. The context of the other options highlights different medical processes. The withdrawal of fluids from a patient typically describes a procedure such as a phlebotomy or tapping, which is distinct from infusion. The application of a topical medication pertains to treatments applied directly to the skin or mucous membranes, which does not involve introducing substances into the bloodstream. Lastly, taking dental impressions involves capturing the shape and structure of teeth and gums, unrelated to the concept of infusion. Understanding these distinctions emphasizes the specific nature of infusion as a vital medical procedure.