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NU 272 Exam 1 Test Questions and Correct Answers
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  • NURS 272
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  • NURS 272

Sensory perception 1.)conscious process of selecting, organizing, and interpreting data from senses into meaningful info 2.)Perception is influenced by the intensity, size, change, representation of stimuli, past experiences, knowledge, attitudes. Stimulus 1.)agent or act that stimulates a nerve r...

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  • August 1, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nu 272 exam 1 test questions and correct answers
  • sensory perception 1conscious process of select
  • stimulus 1agent or act that stimulates a nerve

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  • NURS 272
  • NURS 272

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NU 272 Exam 1 Test Questions and
Correct Answers
Sensory perception ✅1.)conscious process of selecting, organizing, and interpreting
data from senses into meaningful info
2.)Perception is influenced by the intensity, size, change, representation of stimuli, past
experiences, knowledge, attitudes.

Stimulus ✅1.)agent or act that stimulates a nerve receptor

Impulse conduction process - sensory functioning
also do receptors respond to many stimuli or just one? ✅1.)receptor receives stimuli,
translates it to impulse
2.)impulse travels along nerve pathway directly to the brain
*Most receptors are specific-> sensitive to only one type of stimulus (visual, auditory,
touch)

Perception;
where does it take place
what affects perception ✅1.) awareness and interpretation of stimuli
2.) Perception takes place in the brain,
specialized brain cells interpret the nature and the quality of the sensory stimuli.
3.)An individual's level of consciousness (LOC) affects the perception of a stimuli.

CN with Both sensory and motor functions ✅Trigeminal
Glossopharyngeal
Vagus
Facial

Sensory only ✅Olfactory
Optic
Auditory

Motor only ✅Oculomotor
Abducens
Accessory
Trochlear
Hypoglossal

Adaptation ✅when body adapts to constant sensory stimuli to the point where it
essentially goes unnoticed

, Sensory overload ✅Sensory overload is excessive stimuli over which a person feels
little control; the brain is unable to meaningfully respond to or ignore stimuli

Sensory overload - Patients at risk ✅1)Change in environment ( ICU lot going on-->
delirium)
2)Patients experiencing pain/stress
3)Nervous system disturbances

Sensory overload - nursing interventions ✅1) Provide a consistent, predictable pattern
of stimulation to help the patient develop a sense of control over the environment.
2)Offer simple explanations before procedures, tests, and examinations.
3)Establish a schedule with the patient for routine care such as eating, bathing, turning,
positioning, coughing, and exercising.
4)Speak calmly with the patient and move slowly; communicate confidence.
5)Explore with the patient what stimuli are most distressing and develop a plan to
reduce or eliminate them (e.g., incoming phone calls, visitors); earplugs or pain
medication may be indicated. Noise-reducing headphones may be helpful.
6)Be careful not to cause sensory deprivation.
7)Identify and, wherever possible, eliminate culturally inappropriate stimuli.

Sensory Deprivation ✅insufficient quantity or quality of stimuli; may result from
decreased sensory input or monotonous, unpatterned, and unmeaningful input

Patient factors that put them at risk for sensory deprivation ✅1)decreased/
monotonous stimuli
2)impaired ability to receive stimuli
3)unable to process stimuli
4)depression

Sensory Deprivation Nursing intervention ✅-promote cognitive and emotional input
-increase sensory stimuli from all sensory modalities
->patient education:
-->self-stimulation, i.e. counting, singing;
-->visual, tactile, auditory

Normal sensory perception ✅· Brain must be alert or aroused
· Nerve impulses from (ascending) sensory tracts reach RAS
--> allows certain impulses to reach cerebral cortex to be perceived
-->mediates arousal/ controls behavior
-->extends from hypothalamus to medulla
1.) stimuli must be variable or irregular to evoke a response bc body quickly adapts to
continuous stimuli

Conscious States ✅1)Delirium
2)dementia

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