NR509 Final Exam Questions And Verified
Answers
Question:
The function of the auditory ossicles is to:
transmit the light reflex to the light cone.
transform sound vibrations into mechanical waves for the inner ear:Correct to
capture sound waves from the external ear for transmission into the middle ear.
to separate the inner ear from the middle ear.
Explanation:
The function of the auditory ossicles is to transform sound vibrations into mechanical waves for the inner
ear
Question:
A 35-year-old patient complains of vertigo accompanied by nausea and vomiting. Examination reveals
bilateral diplopia and an unsteady gait. These symptoms could be suggestive of:
an arrhythmia.
a neurological condition:Correct
an inner ear infection. Incorrect
orthostatic hypotension.
,Explanation:
Vertigo symptoms associated with neurologic conditions include: ataxia, diplopia, and dysarthria.
Symptoms associated with cardiovascular conditions and vertigo include arrhythmias, orthostatic
hypotension, vasovagal stimulation, lightheadedness, weakness, or presyncope.
Question:
A 60-year-old was concerned about a yellowish colored lesion above her right eyelid. Findings revealed a
slightly raised yellowish, well circumscribed plaque along the nasal area of her right eyelid. This finding is
most consistent with:
a pinguecula.
a chalazion.
episcleritis.
xanthelasma. Correct
Explanation:
Slightly raised, yellowish, well-circumscribed plaques appearing along the nasal area of one or both
eyelids are consistent with lipid disorders and called xanthelasma. Pinguecula refer to harmless,
yellowish, triangular nodules in the bulbar conjunctiva on either side of the iris. A chalazion is a
nontender nodule usually on the underside of the eyelid. Episcleritis is an ocular inflammation of the
episcleral vessels.
Question:
Assessment of a patient's visual acuity resulted in 20/200 using the Snellen eye chart. This means that:
at 200 feet the patient can read printed information that a person with normal vision could read at 20
feet.
at 20 feet the patient can read printed information that a person with normal vision could read at 200
feet:Correct the patient has normal visual acuity. the patient may not be able to read so he should be
tested with the picture or "E" eye charts.
Explanation:
, Visual acuity that is corrected to 20/200 constitutes legal blindness. The larger the number under 20, the
worse the visual acuity. If this is a new finding, the patient needs ophthalmologic evaluation.
Question:
Findings following assessment of a person's left eye gaze include impaired movements when attempting
to look upward, downward, or inward. This condition is most consistent with:
a conjugate gaze.left cranial nerve III (oculomotor) paralysis :Correct
cranial nerve IV (trochlear) paralysis. cranial nerve VI (abducens)
paralysis.
Explanation:
With a left cranial nerve III paralysis, upward, downward, or inward movements are impaired. In
conjugate or normal gaze, the normal movement of the two eyes appears simultaneously in the same
direction to bring something into view. With a left cranial nerve VI paralysis, a person's gaze would
include eyes conjugate when looking to the right, esotropia (one or both eyes turn inward) appears in
the left eye when looking straight ahead, and esotropia is maximum in the left eye when looking to the
left. The left eye is unable to look down when turned inward in a left cranial nerve IV paralysis.
Question:
Findings following assessment of a person's eye gaze include both eyes moving in the same direction
simultaneously. This condition is most consistent with:
a conjugate gaze:Correct left cranial
nerve III (oculomotor) paralysis cranial
nerve IV (trochlear) paralysis. cranial
nerve VI (abducens) paralysis.
Explanation:
In conjugate or normal gaze, the normal movement of the two eyes appears simultaneously in the same
direction to bring something into view. With a left cranial nerve VI paralysis, a person's gaze would
include eyes conjugate when looking to the right, esotropia (one or both eyes turn inward) in the left eye
when looking straight ahead, and esotropia is maximum in the left eye when looking to the left. With a
Answers
Question:
The function of the auditory ossicles is to:
transmit the light reflex to the light cone.
transform sound vibrations into mechanical waves for the inner ear:Correct to
capture sound waves from the external ear for transmission into the middle ear.
to separate the inner ear from the middle ear.
Explanation:
The function of the auditory ossicles is to transform sound vibrations into mechanical waves for the inner
ear
Question:
A 35-year-old patient complains of vertigo accompanied by nausea and vomiting. Examination reveals
bilateral diplopia and an unsteady gait. These symptoms could be suggestive of:
an arrhythmia.
a neurological condition:Correct
an inner ear infection. Incorrect
orthostatic hypotension.
,Explanation:
Vertigo symptoms associated with neurologic conditions include: ataxia, diplopia, and dysarthria.
Symptoms associated with cardiovascular conditions and vertigo include arrhythmias, orthostatic
hypotension, vasovagal stimulation, lightheadedness, weakness, or presyncope.
Question:
A 60-year-old was concerned about a yellowish colored lesion above her right eyelid. Findings revealed a
slightly raised yellowish, well circumscribed plaque along the nasal area of her right eyelid. This finding is
most consistent with:
a pinguecula.
a chalazion.
episcleritis.
xanthelasma. Correct
Explanation:
Slightly raised, yellowish, well-circumscribed plaques appearing along the nasal area of one or both
eyelids are consistent with lipid disorders and called xanthelasma. Pinguecula refer to harmless,
yellowish, triangular nodules in the bulbar conjunctiva on either side of the iris. A chalazion is a
nontender nodule usually on the underside of the eyelid. Episcleritis is an ocular inflammation of the
episcleral vessels.
Question:
Assessment of a patient's visual acuity resulted in 20/200 using the Snellen eye chart. This means that:
at 200 feet the patient can read printed information that a person with normal vision could read at 20
feet.
at 20 feet the patient can read printed information that a person with normal vision could read at 200
feet:Correct the patient has normal visual acuity. the patient may not be able to read so he should be
tested with the picture or "E" eye charts.
Explanation:
, Visual acuity that is corrected to 20/200 constitutes legal blindness. The larger the number under 20, the
worse the visual acuity. If this is a new finding, the patient needs ophthalmologic evaluation.
Question:
Findings following assessment of a person's left eye gaze include impaired movements when attempting
to look upward, downward, or inward. This condition is most consistent with:
a conjugate gaze.left cranial nerve III (oculomotor) paralysis :Correct
cranial nerve IV (trochlear) paralysis. cranial nerve VI (abducens)
paralysis.
Explanation:
With a left cranial nerve III paralysis, upward, downward, or inward movements are impaired. In
conjugate or normal gaze, the normal movement of the two eyes appears simultaneously in the same
direction to bring something into view. With a left cranial nerve VI paralysis, a person's gaze would
include eyes conjugate when looking to the right, esotropia (one or both eyes turn inward) appears in
the left eye when looking straight ahead, and esotropia is maximum in the left eye when looking to the
left. The left eye is unable to look down when turned inward in a left cranial nerve IV paralysis.
Question:
Findings following assessment of a person's eye gaze include both eyes moving in the same direction
simultaneously. This condition is most consistent with:
a conjugate gaze:Correct left cranial
nerve III (oculomotor) paralysis cranial
nerve IV (trochlear) paralysis. cranial
nerve VI (abducens) paralysis.
Explanation:
In conjugate or normal gaze, the normal movement of the two eyes appears simultaneously in the same
direction to bring something into view. With a left cranial nerve VI paralysis, a person's gaze would
include eyes conjugate when looking to the right, esotropia (one or both eyes turn inward) in the left eye
when looking straight ahead, and esotropia is maximum in the left eye when looking to the left. With a
