What is the primary function of a Health Maintenance Organization (HMO)?

The primary function of a Health Maintenance Organization (HMO) is to offer comprehensive medical services on a prepaid basis. HMOs are designed to provide a wide range of healthcare services to their members, which typically include preventive care, routine medical check-ups, hospitalization, and specialty care, all for a fixed premium. This model is intended to emphasize preventive care and health maintenance, as members have access to a network of physicians and facilities focused on managing their overall health.

By paying a set fee, members are encouraged to utilize the services provided without the deterrent of additional costs for each visit, thus promoting regular health check-ups and early intervention in health issues. This approach helps in managing healthcare costs effectively while ensuring that patients receive necessary care.

In contrast, the options that suggest limited services, an exclusive focus on emergency care, or a restriction to only hospital services do not align with the mission of an HMO, which is to provide a comprehensive range of medical services to support the health and wellness of its members.