SG 6420: FNP I Adult/Gero Final Review Study Guide 1. General Concepts in Geriatrics Impact of physiological changes with aging: Kennedy Chapter 1. The major impact of all of these physiological changes can be highlighted with three primary points. First, there is a reduced physiological reserve of most body systems, particularly cardiac, respiratory, and renal. Second, there are reduced homeostatic mechanisms that fail to adjust regulatory systems such as temperature control and fluid and…