During an assessment the nurse suspects that a victim of a motor ...

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During an assessment the nurse suspects that a victim of a motor vehicle crash is a narcotic substance user. Which assessment findings would confirm the nurse's suspicion?
 
  Select all that apply.
 
  1. small pupils
  2. dilated pupils
  3. unequal pupil size
  4. poor pupillary response to light
  5. one dilated and unresponsive pupil

Question 2

The nurse is assessing a patient with retinitis pigmentosa. Which findings should the nurse identify as consistent with this health problem?
 
  Select all that apply.
 
  1. loss of visual acuity
  2. loss of peripheral vision
  3. progressive night blindness
  4. one dilated, unresponsive pupil
  5. reduced perception of blue-green tones

[sarajane1989]

Answer to Question 1

Correct Answer: 1, 4
The use of morphine and narcotic drugs may cause small pupils with poor response to light. The use of anticholinergic drugs such as atropine may cause dilated, poorly responsive pupils. Pupils that are unequal in size may indicate previous eye surgery or a serious neurologic problem, such as increased intracranial pressure. One dilated and unresponsive pupil may indicate paralysis of the oculomotor nerve.

Answer to Question 2

Correct Answer: 1, 2, 3
Retinitis pigmentosa results in progressive night blindness, with loss of visual acuity and peripheral vision. A patient who has one dilated and unresponsive pupil may have paralysis of the oculomotor nerve. A change in blue-green perception is an age-related change caused by the atrophy of photoreceptor cells in the eyes.

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