Nr 601 Midterm Study Guide Walden University (Latest 2025 Update) | Comprehensive Review & Exam Prep | A+ Guaranteed

This study source was downloaded by 100000899792425 from CourseHero.com on 08-13-2025 22:38:05 GMT -05:00 https://www.coursehero.com/file/250779861/NR601-Midterm-Study-Guidedocx/ NR 601 Midterm Study Guide - Walden University (Latest 2025 Update) Comprehensive Review & Exam Prep A+ Guaranteed Week 1 Chapter Readings - 1, 5-7 Topics: Wellness, Prevention, Cultural Aspects, Prescribing 1. Know the physiologic effects of aging in all body systems Body Composition: decreased body water (increased chance of dehydration, thirst sensation is blunted with age, increased body fat Brain: decrease of 7% of physical weight, anatomy atrophy commonly noted Sleep patterns are reduced in stage 3 & 4, more frequent awakenings, reduced sleep efficiency Vision: Lens accommodation reduced after age 40-50 ( reading glasses at 42-50) Amount of light reaching the retina: diminished by up to 70% Color perception: Reduced color intensity especially noted in greens and blues Hearing: decline begins about age 12 and is steepest in higher frequencies (>5000 hertz cycles/second) Taste/Smell: number of taste buds: reduced by 70 % Changes in preferences: increased tolerance for very sweet and very salty food due to reduced perception Cardiac Function: maximum heart rate reduced from 195 to 155 bpm Reduced cardiac output during stress predisposed to heart failure during sepsis, pneumonia, and surgery