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44 Cards in this Set
- Front
- Back
Reticular activating system (RAS)
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Responsible for bringing information together from the CEREBELLUM and other parts of the brain to obtain from sense organs
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What stimulate RAS?
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Multiple sensory pathways, including visceral, kinesthetic, and cognitive input
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Example of RAS
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Parent awakened in middle of night by slightest murmur of infant but may sleep through loud traffic noises
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External sensation
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Visual, auditory, olfactory (smell), gustatory (taste), tactile (touch)
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Internal sensation
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Kinesthetic and visceral sense
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Special senses
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Vision, hearing, smell, and taste
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Somatic senses
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Touch, kinesthetic (or proprioceptive) sensation, and visceral sensation
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Sensoristasis
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State of optimum arousal-not too much and not too little
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Sensory perception
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Conscious process of selecting, organizing, and interpreting sensory stimuli that requires intact and functioning sense organs, nervous pathways, and the brain
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Sensory receptors
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Adapts to repeated stimulation by responding less and less. (Background traffic noise)
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Two necessary time periods crucial to helping a person deal with new stimuli?
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Lead time and afterburn
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Lead time
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Time each person needs to prepare for event EMOTIONALLY and PHYSICALLY.
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Afterburn
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Time needed to think about, evaluate, come to terms with the activity after it happens. (Reflecting)
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What are the Sensory perception changes that occurs in older adult?
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Eyesight diminishes, sounds becomes more muffled, and other sensory system deteriorate.
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What factors affect sensory perception?
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Environment, previous experience, lifestyle and habit, illness, medication, age, and variation in stimulation
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How does the environment affect sensory perception?
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Sensory stimuli affects sensory perception
(ex. Teacher used to school cafeteria noise but not loud tv at home, which is usually quiet) |
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How does previous experience, lifestyle and habits affect sensory perception?
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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 |
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How does illness and medication affect sensory perception?
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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 |
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Among older adults, 30% of the 65 to 74 y/o and 50% >75 y/o form?
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HEARING LOSS, causing DEPRESSION, DECREASE COGNITIVE FUNCTIONING making hearing impairment one of the most chronic ailment.
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What causes disability in ADL, depression, increased risk of falls in older adult?
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low vision or blindness
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When a person feels confused, anxious, and unable to take constructive action, he/she is experiencing?
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Sensory overload
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What is sensory deprivation?
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When a person experiences boredom, depression, restlessness, and vivid sensual imagery, including hallucination.
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When a person is unable to process or manage intensity or quantity of incoming sensory stimuli, feels out of control?
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Sensory overload
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Name three areas involved that may need to prevent sensory overload?
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Information internal, and environment
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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
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What can happen in an environment that causes sensory overload?
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New roommate, unexpected intrusion, bright lights, pt in ICU
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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?
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Sensory deprivation
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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?
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Altered sensory reception
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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?
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Hallucinations
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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?
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Delusions
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What is an impaired function in sensory reception or perception?
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Sensory deficit
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A sudden loss of sensory perception through sensory deficit can cause?
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Total disorientation because compensation does not occur immediately
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What changes patient go through to adapt to adapt to sensory deficit?
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Turning functional ear to speaker to hear, measure temperature of bath water with thermostat
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What may result from sensory deficit and sensory perception? (Ex. Helplessness and loss of self esteem)
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Depression and withdrawal
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What should you focus when doing a physical assessment?
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Focus on hearing, vision, taste, touch, smell, somatic sense, and mental status
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What should you instruct patients with chronic illnesses (hypertension, diabetes) do to promote health?
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Self-monitoring of blood sugar, compliance of medication, diet control, and medical follow up.
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What technique is used to prepare patients before procedure to Prevent overstimulation?
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Sensation (sensory) information (pt POV, describe to pt in serial order)
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What can a nurse do to reduced sensory deprivation?
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Provide appropriate stimuli, such as addressing the patient name, introducing and reintroducing yourself, explain all activities, and when leaving, acknowledge when you will return.
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What things patient can do to overcome sensory deprivation or sensory deficit?
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Play TV, radio, encourage visitors, encourage use of clock and calendar, open drapes. Etc
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What should clients with decreased sensation in extremities do to ensure safety?
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ADJUST water heater to lower temperature, TEST water with thermometer before bathing, INSPECT FEET AND LEGS for injuries and pressure sores they cannot feel.
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What things nurses can do to clients that experienced sensory deprivation, sensory deficit, and sensory overload?
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Assist with ambulation, use bed rails, night lights, call system, frequent and continuous observation as necessary.
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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.
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Non dominated side, 1 foot, non dominated hand, dominated hand, uncluttered
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Altered sensory reception occurs in?
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Spinal cord injury, brain damage, sleep deprivation, chronic illness.
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What behaviors indicate cognitive dysfunction?
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Disorientation, verbalized disconnected thoughts, sleeplessness, fatigue, inability to think, poor work performance (difficulty concentrating and thinking logically)
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