Which of the following is a covered benefit under Medicare Part B?

Medicare Part B primarily covers outpatient services, which includes certain types of medically necessary services. Kidney dialysis is indeed included under these benefits because it is a treatment for end-stage renal disease (ESRD), a condition that requires ongoing and specialized care. Part B covers outpatient dialysis treatments as well as some related services. Thus, beneficiaries in need of this treatment can receive necessary care under Medicare Part B.

In contrast, long-term nursing care is not typically covered under Part B; Medicare has specific criteria for nursing facility coverage, and many long-term care services are excluded. Dental services are also generally not covered by Medicare unless they are related to a specific medical condition, and routine dental procedures fall outside this scope. Vision correction glasses can be covered under Medicare Part B, but only in specific situations following cataract surgery; routine vision care is not covered. Therefore, kidney dialysis stands out as a clear covered benefit under Medicare Part B.