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44 Cards in this Set

  • Front
  • Back
Reticular activating system (RAS)
Responsible for bringing information together from the CEREBELLUM and other parts of the brain to obtain from sense organs
What stimulate RAS?
Multiple sensory pathways, including visceral, kinesthetic, and cognitive input
Example of RAS
Parent awakened in middle of night by slightest murmur of infant but may sleep through loud traffic noises
External sensation
Visual, auditory, olfactory (smell), gustatory (taste), tactile (touch)
Internal sensation
Kinesthetic and visceral sense
Special senses
Vision, hearing, smell, and taste
Somatic senses
Touch, kinesthetic (or proprioceptive) sensation, and visceral sensation
Sensoristasis
State of optimum arousal-not too much and not too little
Sensory perception
Conscious process of selecting, organizing, and interpreting sensory stimuli that requires intact and functioning sense organs, nervous pathways, and the brain
Sensory receptors
Adapts to repeated stimulation by responding less and less. (Background traffic noise)
Two necessary time periods crucial to helping a person deal with new stimuli?
Lead time and afterburn
Lead time
Time each person needs to prepare for event EMOTIONALLY and PHYSICALLY.
Afterburn
Time needed to think about, evaluate, come to terms with the activity after it happens. (Reflecting)
What are the Sensory perception changes that occurs in older adult?
Eyesight diminishes, sounds becomes more muffled, and other sensory system deteriorate.
What factors affect sensory perception?
Environment, previous experience, lifestyle and habit, illness, medication, age, and variation in stimulation
How does the environment affect sensory perception?
Sensory stimuli affects sensory perception
(ex. Teacher used to school cafeteria noise but not loud tv at home, which is usually quiet)
How does previous experience, lifestyle and habits affect sensory perception?
Previous experience- people becomes more alert to unfamiliar things and things done routinely they less aware.

Lifestyle and habits- one person enjoy surrounded by people others like to be alone.
-cig. smoking causes atrophy of taste buds
chronic alcohol abuse- peripheral neuropathy causes sensory impairment
Cocaine and amphetamines alter sense of smell
How does illness and medication affect sensory perception?
ex. Diabetes and hypertension- visual deficit and decreased sensation of touch.
Meds- antibiotics ending in -cin (streptomycin and gentamicin) damages the AUDITORY nerve, IMPAIR HEARING
Among older adults, 30% of the 65 to 74 y/o and 50% >75 y/o form?
HEARING LOSS, causing DEPRESSION, DECREASE COGNITIVE FUNCTIONING making hearing impairment one of the most chronic ailment.
What causes disability in ADL, depression, increased risk of falls in older adult?
low vision or blindness
When a person feels confused, anxious, and unable to take constructive action, he/she is experiencing?
Sensory overload
What is sensory deprivation?
When a person experiences boredom, depression, restlessness, and vivid sensual imagery, including hallucination.
When a person is unable to process or manage intensity or quantity of incoming sensory stimuli, feels out of control?
Sensory overload
Name three areas involved that may need to prevent sensory overload?
Information internal, and environment
What Factor that can contribute to anxiety and cognitive overload?

Ex. Thinking about impending surgery, pain, lack of sleep, worry, hypoxemia, electrolyte disturbances
Internal factor
What can happen in an environment that causes sensory overload?
New roommate, unexpected intrusion, bright lights, pt in ICU
A lessening or lack of meaningful sensory stimuli , monotonous sensory input, or an interference with the processing of information to slow paced environment, describe someone possibly experiencing?
Sensory deprivation
When a patient who suffered from spinal cord injury in a car accident, he was left paraplegic. One day, he decided to sneak a cigarette and accidentally dropped the lighted match on his slipper and burned his foot. He is experiencing?
Altered sensory reception
Sensory impression that are based on internal stimulations, have no basis in reality. In this case a person may hear voices that are not really present, would be an example of a person experiencing?
Hallucinations
Beliefs not based on reality, reflect an unconscious need or fear (ex. believing hospital food is poisoned) would be an example of a person experiencing?
Delusions
What is an impaired function in sensory reception or perception?
Sensory deficit
A sudden loss of sensory perception through sensory deficit can cause?
Total disorientation because compensation does not occur immediately
What changes patient go through to adapt to adapt to sensory deficit?
Turning functional ear to speaker to hear, measure temperature of bath water with thermostat
What may result from sensory deficit and sensory perception? (Ex. Helplessness and loss of self esteem)
Depression and withdrawal
What should you focus when doing a physical assessment?
Focus on hearing, vision, taste, touch, smell, somatic sense, and mental status
What should you instruct patients with chronic illnesses (hypertension, diabetes) do to promote health?
Self-monitoring of blood sugar, compliance of medication, diet control, and medical follow up.
What technique is used to prepare patients before procedure to Prevent overstimulation?
Sensation (sensory) information (pt POV, describe to pt in serial order)
What can a nurse do to reduced sensory deprivation?
Provide appropriate stimuli, such as addressing the patient name, introducing and reintroducing yourself, explain all activities, and when leaving, acknowledge when you will return.
What things patient can do to overcome sensory deprivation or sensory deficit?
Play TV, radio, encourage visitors, encourage use of clock and calendar, open drapes. Etc
What should clients with decreased sensation in extremities do to ensure safety?
ADJUST water heater to lower temperature, TEST water with thermometer before bathing, INSPECT FEET AND LEGS for injuries and pressure sores they cannot feel.
What things nurses can do to clients that experienced sensory deprivation, sensory deficit, and sensory overload?
Assist with ambulation, use bed rails, night lights, call system, frequent and continuous observation as necessary.
When assisting a visually impaired patient with ambulation, stand on patient's _____ about___in front of them. Have patient grasp your arm with____and use_____to feel around for barriers and landmarks. Always maintain____environment.
Non dominated side, 1 foot, non dominated hand, dominated hand, uncluttered
Altered sensory reception occurs in?
Spinal cord injury, brain damage, sleep deprivation, chronic illness.
What behaviors indicate cognitive dysfunction?
Disorientation, verbalized disconnected thoughts, sleeplessness, fatigue, inability to think, poor work performance (difficulty concentrating and thinking logically)