The scientific study of the effects of aging and age-related diseases on humans is known as ________________________

When administering oxygen by nonrebreather mask, an oxygen flow rate of _____ liters per minute must be maintained

A) 10 to 15 B) 6 to 10 C) 4 to 6 D) 2 to 6

Medicare Part B beneficiaries pay a monthly premium that is calculated based on which of the following?

A. income B. Social Security benefit rates C. age D. part B does not have a monthly premium