A nurse is performing a neurological assessment for a client who has head trauma. Which of the following assessments will give the nurse information about the function of cranial nerve III?
Ask the client to shrug his shoulders against passive resistance
Instruct the client to look up and down without moving his head
Observe the client's ability to smile and frown
Have the client stand with his eyes closed and touch his nose
The Correct Answer is B
Choice A: Ask the client to shrug his shoulders against passive resistance is not an assessment that will give the nurse information about the function of cranial nerve III. This assessment will test the function of cranial nerve XI, which is the accessory nerve. The accessory nerve innervates the trapezius and sternocleidomastoid muscles, which are involved in shoulder and neck movements.
Choice B: Instruct the client to look up and down without moving his head is an assessment that will give the nurse information about the function of cranial nerve III. Cranial nerve III is the oculomotor nerve, which innervates four of the six extraocular muscles that control eye movements. The oculomotor nerve also controls pupil size and lens shape. By instructing the client to look up and down without moving his head, the nurse can assess the ability of the oculomotor nerve to move the eyes vertically and adjust to different distances.
Choice C: Observe the client's ability to smile and frown is not an assessment that will give the nurse information about the function of cranial nerve III. This assessment will test the function of cranial nerve VII, which is the facial nerve. The facial nerve innervates the muscles of facial expression, which are involved in smiling, frowning, blinking, and other facial movements.
Choice D: Have the client stand with his eyes closed and touch his nose is not an assessment that will give the nurse information about the function of cranial nerve III. This assessment will test the function of cranial nerve VIII, which is the vestibulocochlear nerve. The vestibulocochlear nerve innervates the inner ear and is responsible for hearing and balance. By having the client stand with his eyes closed and touch his nose, the nurse can assess the ability of the vestibulocochlear nerve to maintain equilibrium and coordination.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A: Provide a brightly lit environment is not an intervention that the nurse should take. A brightly lit environment can stimulate the brain and increase intracranial pressure. The nurse should provide a quiet and dimly lit environment to reduce sensory stimuli and promote rest.
Choice B: Elevate the head of the bed is an intervention that the nurse should take. Elevating the head of the bed to 30 degrees can help reduce intracranial pressure by facilitating venous drainage from the brain and decreasing cerebral blood volume. The nurse should avoid flexing or extending the neck, which can impede blood flow and increase intracranial pressure.
Choice C: Encourage a minimum intake of 2000 mL (67.6 oz) of clear fluids per day is not an intervention that the nurse should take. A high fluid intake can increase intracranial pressure by increasing blood volume and cerebral edema. The nurse should monitor fluid balance and restrict fluid intake as prescribed to maintain normal osmolality and prevent fluid overload.
Choice D: Teach controlled coughing and deep breathing is not an intervention that the nurse should take. Coughing and deep breathing can increase intrathoracic pressure, which can increase intracranial pressure by reducing venous return from the brain. The nurse should avoid activities that can increase intrathoracic pressure, such as straining, sneezing, or blowing the nose. The nurse should also administer oxygen as prescribed to maintain adequate oxygenation and perfusion of the brain.
Correct Answer is ["B","C","D","E"]
Explanation
Choice a) is incorrect because nausea is not a common manifestation of ARF. Nausea is a sensation of discomfort in the stomach that may or may not lead to vomiting. Nausea can be caused by many other conditions, such as gastroenteritis, motion sickness, or pregnancy.
Choice b) is correct because severe dyspnea is a common manifestation of ARF. Dyspnea is a subjective feeling of difficulty or discomfort in breathing. Severe dyspnea indicates that the client is not getting enough oxygen and may have low blood oxygen levels (hypoxemia) or high carbon dioxide levels (hypercapnia).
Choice c) is correct because headache is a common manifestation of ARF. Headache is a pain or discomfort in the head, scalp, or neck. Headache can be caused by high carbon dioxide levels (hypercapnia), which can affect the blood vessels and nerves in the brain.
Choice d) is correct because a decreased level of consciousness is a common manifestation of ARF. Level of consciousness is a measure of how alert and oriented a person is. A decreased level of consciousness can be caused by low blood oxygen levels (hypoxemia), high carbon dioxide levels (hypercapnia), or acid-base imbalance, which can affect brain function and mental status.
Choice e) is correct because hypotension is a common manifestation of ARF. Hypotension is a condition in which the blood pressure is lower than normal. Hypotension can be caused by low blood oxygen levels (hypoxemia), which can impair heart function and reduce cardiac output.
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