What term refers to the ease with which a person can access necessary medical services?

The term that best refers to the ease with which a person can access necessary medical services is "Healthcare Access." This concept encompasses various factors that influence an individual's ability to obtain healthcare, including geographical location, availability of healthcare providers, affordability of services, and the acceptability of those services to the individual. Effective healthcare access is crucial for achieving better health outcomes, as it ensures that individuals can receive timely and appropriate care when needed.

In contrast, the other terms address different aspects of the healthcare system. Health equity pertains to fairness in health-related outcomes and the elimination of disparities among different populations. Medical availability, while related, focuses more specifically on the existence of services rather than the ease of access to them. Service accessibility, though similar in meaning, does not specifically emphasize the healthcare context as directly as healthcare access does.