ATI TEAS (Test of Essential Academic Skills) Version 7English and Language UsageHard
A patient's chart notes state 'Nystagmus is present on lateral gaze.' A nursing assistant is unfamiliar with this term. Which of the following observations would confirm the presence of nystagmus?
- ADouble vision.
- BInvoluntary rapid eye movements.
- CDrooping of the eyelid.
- DDilated pupils.
Show answer & explanationAnswer & explanation
Correct answer: B. Involuntary rapid eye movements.
Nystagmus is an involuntary, rapid, and repetitive oscillation of the eyes. It can be horizontal, vertical, or rotational. Observing involuntary rapid eye movements is the direct confirmation of nystagmus.
Why the other options are wrong
- A. Double vision is diplopia.
- C. Drooping of the eyelid is ptosis.
- D. Dilated pupils are mydriasis.
Nystagmus
An involuntary, rapid, and repetitive oscillation or movement of the eyes.
- Can be horizontal, vertical, or rotatory
- Often a sign of neurological dysfunction or inner ear problems
- Can be congenital or acquired
- May be more prominent in certain gaze directions
Memory trick: Eye movements tell tales, know your 'gmus' and 'plegias' for eye health.