The nurse is assessing CN III (oculomotor), CN IV (trochlear), and CN VI (abducens). Which eye movements would the nurse document as nystagmus? Note: Credit will be given only if all correct choices and no incorrect choices are selected
Select all that apply. 1. The patient's eyes move together through the six cardinal positions of gaze.
2. The patient's eyes "jerk" horizontally instead of moving smoothly.
3. The patient's eyes move in a rotary fashion when attempting to follow the examiner's finger.
4. The patient's eyes cross when following the examiner's finger.
5. The patient's eyelids droop when the eye is moved to the left.
2,3
Rationale 1: This is a normal finding and is not considered nystagmus.
Rationale 2: Nystagmus may be a horizontal movement.
Rationale 3: Nystagmus can be a rotary movement.
Rationale 4: Crossing of the eyes is a dysconjugate gaze.
Rationale 5: Drooping of the eyelid is ptosis.
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