During an assessment of the cranial nerves, the nurse finds the following: Asymmetry when the client frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and an escape of air from the right side when the client puffs their cheeks. This would indicate the dysfunction of which of the cranial nerves?
Motor component of IV (Trochlear)
Motor and sensory components of XI (Accessory)
Motor component of VII (Facial)
Motor component of X (Vagus) and sensory component of XII (Hypoglossal)
The Correct Answer is C
A) Motor component of IV (Trochlear): The trochlear nerve primarily controls the superior oblique muscle of the eye, which is responsible for downward and lateral eye movements. The findings described do not relate to eye movement and therefore do not indicate dysfunction of this nerve.
B) Motor and sensory components of XI (Accessory): The accessory nerve innervates the sternocleidomastoid and trapezius muscles, primarily affecting head rotation and shoulder elevation. The symptoms noted in the assessment do not pertain to these muscle functions, so this option is not correct.
C) Motor component of VII (Facial): The signs of asymmetry in frowning, uneven eyebrow lifting, sagging eyelids, and air escaping when puffing the cheeks are characteristic of dysfunction in the facial nerve (cranial nerve VII). This nerve controls the muscles of facial expression, and impairment would lead to the described asymmetrical movements.
D) Motor component of X (Vagus) and sensory component of XII (Hypoglossal): The vagus nerve affects autonomic functions and some swallowing muscles, while the hypoglossal nerve controls tongue movements. Neither nerve is primarily responsible for the facial expressions described in the assessment findings, making this option incorrect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Dizziness: While the term "dizziness" can describe a range of sensations, it is more general and does not specifically capture the experience of the patient feeling that the room is spinning. Dizziness can include feelings of lightheadedness or imbalance, which are not the primary symptoms the patient is describing.
B) Tinnitus: Tinnitus refers to the perception of sound, such as ringing or buzzing, in the absence of an external source. This term does not relate to the patient's symptoms of spinning sensations and nausea, making it irrelevant in this context.
C) Vertigo: This term accurately describes the sensation of spinning or movement, often associated with inner ear disturbances. The patient's description aligns with vertigo, as it reflects the specific experience of feeling as though the environment is moving, which can indeed lead to nausea.
D) Otalgia: Otalgia refers to ear pain and is not applicable to the symptoms the patient describes. Since the patient is focusing on a spinning sensation and associated nausea, this term does not relate to the presenting issue.
Correct Answer is B
Explanation
A) Eupnea: Eupnea refers to a normal respiratory rate, typically between 12 to 20 breaths per minute for adults. Given that the client’s respiratory rate is significantly lower than this range, documenting the finding as eupnea would not accurately reflect the client’s condition.
B) Bradypnea: Bradypnea is defined as a slower-than-normal respiratory rate, usually less than 12 breaths per minute. With the client's rate at 9 breaths per minute, this is an example of bradypnea. It is crucial for the nurse to document this finding accurately, even though the client denies feeling short of breath, as it could indicate an underlying issue requiring further assessment.
C) Tachypnea: Tachypnea indicates a faster-than-normal respiratory rate, typically over 20 breaths per minute. Since the client's respiratory rate is low at 9 breaths per minute, labeling it as tachypnea would be incorrect and misleading.
D) Dyspnea: Dyspnea refers to difficulty or discomfort in breathing. Although the client does not report feeling short of breath, it is essential to note that the low respiratory rate could still lead to respiratory distress, but it does not meet the criteria for dyspnea based on the client's self-report. Therefore, documenting this finding as dyspnea would not be appropriate.
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