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Among other findings, the physician determines that pupil response to light is not normal in one of your patient's eyes. Pupil changes that happen as a result of brain injury occur ______________ to the site of brain injury.

a) Contralateral
b) Ipsilateral
c) Bilaterally
d) Centrally

User Perigee
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Final answer:

Pupil changes that happen as a result of brain injury occur ______________ to the site of brain injury.

Step-by-step explanation:

The physician determines that pupil response to light is not normal in one of your patient's eyes. Shining light in one eye will elicit constriction of both pupils. The efferent limb of the pupillary light reflex is bilateral. Light shined in one eye causes a constriction of that pupil, as well as constriction of the contralateral pupil. If shining the light in one eye results in no changes in pupillary size but shining light in the opposite eye elicits a normal, bilateral response, the damage is associated with the optic nerve on the nonresponsive side.

User AlokThakur
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