The nurse read the patient's health history and noted cranial nerve III oculomotor paralysis. Which of the following would the nurse expect?
The eye cannot look to the outside.
Myopia.
Ptosis will be evident and no pupillary constriction.
Normal eye movement.
The Correct Answer is C
Choice a reason:
The inability of the eye to look outward, known as lateral rectus palsy, is associated with cranial nerve VI, the abducens nerve, not the oculomotor nerve. The oculomotor nerve does not control the lateral rectus muscle which governs this movement.
Choice b reason:
Myopia, or nearsightedness, is a refractive error of the eye where distant objects appear blurry while close objects can be seen clearly. It is not related to oculomotor nerve paralysis, which affects eye movements and pupil response, not the shape of the eyeball or the refractive properties of the lens.
Choice c reason:
Ptosis, or drooping of the upper eyelid, and an absence of pupillary constriction are classic signs of oculomotor nerve paralysis. The oculomotor nerve controls most of the eye's movements, including lifting the eyelid via the levator palpebrae superioris muscle and constricting the pupil through the circular muscles of the iris.
Choice d reason:
Normal eye movement would not be expected in a patient with oculomotor nerve paralysis. This nerve controls the majority of the eye's movements, so paralysis would lead to abnormal eye movement, such as the inability to move the eye upward, downward, or inward.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice a reason:
The tympanic membrane, also known as the eardrum, is a critical component of the middle ear. It is a thin membrane that separates the external ear from the middle ear and vibrates in response to sound waves. These vibrations are then transmitted to the ossicles within the middle ear, which amplify and carry the sound to the inner ear.
Choice b reason:
The ear lobe is part of the external ear, not the middle ear. It is composed of soft skin and fatty tissue and does not play a role in hearing. The ear lobe serves primarily as a site for body decoration such as earrings.
Choice c reason:
The cochlea is a structure located in the inner ear. It is a spiral-shaped organ that contains the organ of Corti, the sensory organ of hearing. The cochlea converts the mechanical vibrations from the middle ear into nerve impulses that are sent to the brain.
Choice d reason:
The pinna, or auricle, is the visible part of the external ear. It is made of cartilage and skin and functions to capture sound waves and direct them into the ear canal towards the tympanic membrane.
Correct Answer is A
Explanation
Choice a reason :
Referring the client for medical follow-up is the most appropriate action. Acanthosis Nigricans is often associated with insulin resistance and is a risk factor for diabetes mellitus. The client's symptoms of fatigue, thirst, and frequent urination are classic signs of diabetes. Therefore, a comprehensive medical evaluation is necessary to rule out diabetes or other underlying conditions that could be causing these symptoms.
Choice b reason
While Acanthosis Nigricans can sometimes be associated with malignancy, it is more commonly linked to insulin resistance and diabetes. The client's presenting symptoms are not typical of cancer but are indicative of diabetes. Therefore, while a family history of cancer is relevant to the client's overall health, it is not the immediate concern based on the current presentation.
Choice c reason
Documenting findings is an essential part of the nursing process; however, the presence of Acanthosis Nigricans, especially when coupled with symptoms of fatigue, thirst, and frequent urination, should not be considered benign without further investigation. These findings warrant further assessment to determine the underlying cause.
Choice d reason
Performing a random blood sugar test could be a part of the initial assessment; however, it should not replace a referral for a comprehensive medical evaluation. A random blood sugar test alone may not be sufficient to diagnose diabetes or determine the cause of the client's symptoms. A full medical follow-up will likely include blood sugar testing along with other diagnostic tests.
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