Medicines can be given in several ways and different forms depending on the type of medicine and clients' condition. This is called the______________.

The term that best fits the description given in the question is "Route of Administration." This concept refers to the various methods through which medications can be delivered into the body, which includes oral, intravenous, intramuscular, topical, and others. Each route has specific implications for how the drug is absorbed, metabolized, and excreted, and the route chosen often depends on the type of medication, the desired speed of effect, and the condition of the client.

Understanding the route of administration is crucial because it affects the efficacy and safety of medications. For example, certain medications work better orally, while others may need to be injected to ensure they enter the bloodstream quickly. This flexibility allows healthcare providers to tailor treatment to each patient's unique situation, optimizing therapeutic outcomes.

Other options such as "Administration Procedure," while related to how medication is given, do not specifically address the various methods (routes) by which medications can enter the body. “Drug Administration” is a more general term that could include many aspects of giving medications, while "Self-administration" refers specifically to patients taking their medications themselves, which does not encompass all delivery methods. Thus, the term "Route of Administration" succinctly and accurately captures the essence of the question.