Chapter 49 Sensory Alterations Flashcards
5 Senses =
Visual Auditory Tactile (touch) Olfactory Gustatory (taste)
Kinesthetic sense =
enables a person to be aware of the position and movement of body parts without seeing them
Stereognosis =
sense that allows a person to recognize the size, shape, and texture of an object
Meaningful stimuli allow
a person to learn about the environment and is necessary for healthy functioning and normal development.
Normal sensation:
continually receives thousands of bits of info from sensory nerve organs, relays the info through appreciate channels, and integrates the info into a meaningful response
Sensory Alterations:
Sensory Deficits
Sensory Deprivation
Sensory Overload
Sensory Deficits:
a deficit in the normal function of sensory reception and perception
-A person loses a sense of self with impaired senses.
Sensory Deprivation: 3 types
- Reduced sensory input (cognitive)
- Elimination of patterns or meaning from input (affective)
- Restrictive environments that produce monotony and boredom (perceptual)
Sensory stimulation must be of sufficient…
quality and quantity
Effects of sensory deprivation:
Psychological illness, confusion, severe electrolyte imbalance, or influence of psychotropic drugs
Sensory Overload =
When a person receives multiple sensory stimuli and cannot perceptually disregard or selectively ignore some stimuli
Overload is
individualized based on level of fatigue, attitude, emotional and physical well-being.
Common sensory deficits:
Visual Deficits Hearing Balance Taste Neurological
Factors Influencing Sensory Function:
Age Meaningful Stimuli Amount of Stimuli Social Interaction Environmental Factors Cultural Factors
Infants and children are at risk due to
genetic, prenatal, and postnatal conditions
Hearing changes begin at age
30
Glustatory and Olfactory changes begin at age
50
Proprioceptive changes common after age
60
-increased difficulty with balance, spatial orientation, and coordination
Meaningful stimuli reduce the incidence of
sensory deprivation
Ex. pets, music, TV, pictures, calendar, clock = same for home and health care
Amount of Stimuli: excessive stimuli can cause
overload
Ex. patient is in pain or restricted by a cast, in a room near repetitive or loud noises
Social Interaction:
absence of visitors/conversation = isolation, loneliness, anxiety, and depression
Environmental factors:
A person’s occupation places put them at risk
Ex. Factory = high noise levels, repetitive wrist movement = pressure on median nerve
Cultural Factors:
African ethnicity perform significantly worse than European descent on tests of visual function
Assessment:
Health promotion practices Nursing history = look at risks Review factors Extent of lifestyle and self-care alterations Patient's expectations
Persons at Risk:
Older adults - do not automatically assume
Otolarynogologist =
Doctors who treat serious hearing problems