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 B
Explanation
Choice A Reason:
Rhinitis medicamentosa, also known as rebound congestion, is a condition of nasal congestion without other cold or allergy symptoms, typically caused by the overuse of nasal decongestant sprays. It does not usually present with chronic headaches or tenderness over the sinuses, which are more indicative of sinusitis.
Choice B Reason:
Acute bacterial sinusitis is likely the correct diagnosis in this scenario. It often follows a viral upper respiratory infection and presents with symptoms such as thick, discolored nasal mucus, decreased sense of smell, and facial pain or tenderness over the affected sinuses. The chronic headache and noted tenderness upon palpation over the sinuses in the client are consistent with this condition.
Choice C Reason:
Epistaxis, or nosebleed, is bleeding from the nose that can be caused by various factors, including trauma, medication, or environmental conditions. While it can be a symptom of other nasal conditions, it is not typically associated with chronic headaches or sinus tenderness following an upper respiratory infection.
Choice D Reason:
Allergic rhinitis is an allergic reaction to allergens such as pollen, dust, or pet dander, causing symptoms like sneezing, runny nose, itchy eyes, and sometimes headaches. However, the chronic headache and sinus tenderness described by the client after an infection are more suggestive of sinusitis rather than allergic rhinitis.
Correct Answer is B
Explanation
Choice A reason:
Palpating in front of the ear would assess the preauricular lymph nodes, not the submental lymph nodes. The preauricular nodes are located just in front of the ears and are typically examined when there is an infection or inflammation in the eyes, ears, or scalp.
Choice B reason:
The submental lymph nodes are located in the midline, just under the chin, behind the bony prominence of the mandible. This is the correct area for palpation when assessing the submental lymph nodes. These nodes drain the lower lip, the floor of the mouth, the tip of the tongue, and the incisors, and they can become enlarged due to infections or malignancies in these areas.
Choice C reason:
Palpating superficial to the sternomastoid would assess the cervical lymph nodes, specifically the anterior cervical nodes, which are not the submental lymph nodes. The sternomastoid muscle is a landmark for several lymph node groups in the neck, but not for the submental group.
Choice D reason:
Palpating at the angle of the mandible would assess the submandibular lymph nodes, not the submental lymph nodes. The submandibular nodes are located beneath the jawline and can become enlarged due to infections or malignancies in the mouth, throat, and salivary glands.
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