Dementia Flashcards
Ageing Overview
- change comes with age and is influenced by genetic patterns of aging as well as lifestyle choices
- older adults are the most rapidly growing age group among Americans
- 12.5% of US population is 65+
- 1.2% of US population is 85+
- by 2050, 20.4% of US population is projected to 65+ and 4.8% is expected to 85+
Young-Old
65-74 years
Old -Old
75-84 years
Oldest-Old
85 years and older
geriatrics
area medicine that deals with the elderly
We must account for specific issues when working with the geriatric population secondary to:
physiological differences
higher frequency of multiple chronic illnesses
greater number of sensory impairments
increased chance of being on multiple
potentially interacting medications
Normal Signs of Aging: SKIN
skin:
less elastic with more lines and wrinkles; fingernail growth slows as does oil production
Normal Signs of Aging: HAIR
will gradually thin; hair pigment cells will decline and gray hair growth increases
Normal Signs of Aging: HEIGHT
by age 80, it is common to have lost 2 inches; often related to normal changes in posture and compression of joints, spinal bones and spinal discs
Normal Signs of Aging: HEARING
changes in the ear make higher frequency sounds harder to hear and changes in tone and speech less clear; tends to accelerate post age 55
Normal Signs of Aging: VISION
most people in their 40’s develop a need for reading glasses; normal for night vision and visual sharpness to decline while glare increasingly interferes with clear vision
Normal Signs of Aging: BONES
gradually lose mineral content, become less dense and strong; in women bone loss increases after menopause; increased risk of osteoporosis
Normal Signs of Aging: Metabolism and Body Composition
over time the body requires less energy and so metabolism slows; hormone changes will facilitate a shift for the body to store more fat and less muscle mass
Normal Signs of Aging: CNS
beginning in the third decade of life, the brain’s weight and size of its nerve network and blood flow decreases; brain adapts by forming new connections; memory changes are typical with less recall of recent memories and slower ability to remember names commonplace
Normal Signs of Aging: Heart and Blood Circulation
heart becomes less efficient; works harder during activity than it once did; heart muscle will increase in overall mass; gradual decline in endurance
Normal Signs of Aging: Lungs
in inactive people, lungs become less efficient over time, supplying the body with less oxygen
Normal Signs of Aging: Kidneys
with age, decline in size and function; they do not clear wastes and some medicines from the blood as quickly and do not hand dehydration as well
Normal Signs of Aging: Urinary Incontinence
should not occur but may happen due to immobility and side-effects of some medicines
Normal Signs of Aging: Sexual Function
both men and women begin producing less hormones
Cognitive Changes in Normal Aging
- normal part of life; will be variable
- general cognitive decline begins typically in the sixth decade
- verbal abilities are usually maintained until the eighth decade
Additional areas to show decline with aging include: memory abstraction language visuospatial abilities attention
Memory Changes in Aging (look at chart)
several types of memory are affected in the normal aging process
however, elderly are compromised little in everyday life
memory is stored knowledge and the processes for making and manipulating it
humans have many memory systems that can each be separately impaired by trauma or disease
Sensory Memory
brief registration of incoming sensations
Working Memory
info in conscious awareness; active in the reception, encoding and retrieval of information; allows us to make quick decisions and plan actions
LTM
dichotomized as both declarative and nondeclarative