A nurse is performing a cranial nerve assessment on a client following a head injury. Which of the following findings should the nurse expect if the client has impaired function of the vestibulocochlear nerve (cranial nerve VIII)?
Inability to smell
Loss of peripheral vision
Disequilibrium with movement
Deviation of the tongue from midline
The Correct Answer is C
C. The vestibulocochlear nerve is responsible for both the vestibular function and the cochlear function. Impaired function of the vestibulocochlear nerve could result in symptoms related to vestibular dysfunction, such as disequilibrium (feeling unsteady or off balance) especially with movement.
A. The olfactory nerve (cranial nerve I) is responsible for the sense of smell.
B. Loss of peripheral vision is typically associated with impairment of the optic nerve (cranial nerve II), which is responsible for vision.
D. Deviation of the tongue occurs in injury to the hypoglossal nerve.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
D. Evaluate the client for a cuff leak is the most appropriate action in response to a low-pressure alarm on the ventilator. A cuff leak can cause a drop in ventilator pressure, triggering the alarm. Assessing the client's cuff for leaks and addressing any identified issues can help resolve the alarm and ensure adequate ventilation.
A. Suctioning the client's airway is not the appropriate action in response to a low-pressure alarm on the ventilator.
B. Emptying water from the client's ventilator tubing could be a valid action to take if there is excess condensation or water buildup in the ventilator tubing causing the low-pressure alarm. However, it's not the first action to consider, as other causes should be ruled out first.
C. Increasing the ventilator flow rate may help maintain adequate pressure in the ventilator circuit and address the low-pressure alarm if the cause is related to insufficient airflow. However, adjusting the flow rate should be done cautiously and based on the client's respiratory status and ventilator settings.
Correct Answer is D
Explanation
D. A thrill is a palpable vibration or buzzing sensation felt over the graft site, caused by turbulent blood flow. In the context of an arteriovenous graft, a palpable thrill is typically considered a positive finding, indicating adequate circulation through the graft. It suggests that blood is flowing smoothly from the arterial to the venous side of the graft.
A. The presence of a bruit is typically considered a positive finding, indicating adequate blood flow through the graft. Therefore, the absence of a bruit may indicate inadequate circulation or a potential complication such as graft occlusion or stenosis.
B. Normal blood pressure is not a specific indicator of the adequacy of circulation through an arteriovenous graft.
C. A dilated appearance of the graft may suggest venous hypertension or increased pressure within the graft. While this could indicate adequate blood flow, it may also suggest problems such as venous stenosis or thrombosis, which can impede circulation through the graft.
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