number of older adults in US
Older adults currently number over 27 million in the U.S.; this number is expected to reach 86 million by 2050
life expectancy for men and women
Life expectancy is now age 81 for women and age 79 for men on average
percent of americans over 85 projected within 40 years
5%
percent of americans over 65 that live in the community
95% - Frailty is a common myth about the older population
percent of americans over 65 that live in long-term care facilities
5%
Assessing the older adult
primary aging
heterogeneity among aging population
- Individuals who escape onset of debilitating disease entirely live healthy lives into their 80’s and 90’s
Blood pressure with age
systolic hypertension with widened pulse pressure often occurs
heart rate and rhythm with age
pacemaker cells decline and affect response to physiologic stress
-can lead to dizziness and falls
respiratory rate with age
unchanged
temperature regulation with age
changes lead to susceptibility to hypothermia
set point of temperature changes - get colder easier
skin, nails and hair with age
head and neck with age
-eyeballs recede into orbit, corneas lose luster, pupils become smaller, dry eyes are a common complaint, and presbyopia occurs to nearly everyone
presbyopia
lens loses ability to focus, difficult to see objects up close (begins around age 40)
presbycusis
afflicted person fails to catch upper tones of words while hearing lower ones, causing words to sound distorted
taste with age
Diminished salivary secretions and decreased sense of taste occurs; medications and disease often account for this
thorax and lungs with age
capacity for exercise decreases; chest wall stiffens; skeletal changes accentuate dorsal curve producing kyphosis, but resulting “barrel chest” has little effect on function
vessels in the neck
systolic bruits heard in middle or upper portions of carotid arteries suggest partial arterial obstruction from atherosclerosis
extra heart sounds
after age 40, an S3 strongly suggests congestive heart failure; an S4 can be heard in healthy older people, but often suggests decreased ventricular compliance and impaired ventricular filling
cardiac murmurs
systolic aortic murmurs are common
aortic sclerosis
-results from fibrosis and calcification and does not impede blood flow
aortic stenosis
leaflets become calcified and immobile, which can cause outflow obstruction
Aortic sclerosis and stenosis implications
increase risk of CV morbidity and mortality