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 A
Explanation
Choice A: Troponin I is a laboratory test that the nurse should anticipate the provider to prescribe. Troponin I is a protein that is released into the blood when the heart muscle is damaged. Troponin I levels are elevated in clients who have acute myocardial infarction (AMI), which is a heart atack caused by a blockage of blood flow to the heart. Chest pressure and shortness of breath are common signs and symptoms of AMI. Troponin I is a specific and sensitive marker of cardiac injury and can help diagnose AMI and guide treatment.
Choice B: Aspartate aminotransferase (AST) is not a laboratory test that the nurse should anticipate the provider to prescribe. AST is an enzyme that is found in various tissues, such as the liver, heart, skeletal muscle, and kidneys. AST levels are elevated in clients who have liver damage, hepatitis, cirrhosis, or alcohol abuse. AST levels can also be elevated in clients who have AMI, but they are not as specific or sensitive as troponin I. AST is not a reliable indicator of cardiac injury and can be influenced by other factors.
Choice C: B-type natriuretic peptide (BNP) is not a laboratory test that the nurse should anticipate the provider to prescribe. BNP is a hormone that is secreted by the heart when it is stretched or overloaded. BNP levels are elevated in clients who have heart failure, which is a condition in which the heart cannot pump enough blood to meet the
body's needs. Shortness of breath can be a sign of heart failure, but chest pressure is not. BNP is not a specific or sensitive marker of cardiac injury and can be influenced by other factors.
Choice D: Lipase is not a laboratory test that the nurse should anticipate the provider to prescribe. Lipase is an enzyme that is produced by the pancreas and helps digest fats. Lipase levels are elevated in clients who have pancreatitis, which is an inflammation of the pancreas. Pancreatitis can cause abdominal pain, nausea, vomiting, and fever. Chest pressure and shortness of breath are not signs of pancreatitis. Lipase is not a specific or sensitive marker of cardiac injury and has no relation to AMI.
Correct Answer is D
Explanation
Choice A reason: Vesicles on the skin are not typical of inhalation anthrax; instead, they are more associated with cutaneous anthrax, which presents as papules that progress to vesicles and then black eschars.
Choice B reason: Respiratory failure can occur later in the course of inhalation anthrax, but it is not an early finding. It usually develops after the initial phase of nonspecific symptoms when the illness progresses to severe respiratory distress and shock.
Choice C reason: Sloughing of skin is not characteristic of inhalation anthrax. Similar to vesicles, skin sloughing may be associated with severe cutaneous infections or other dermatologic conditions, not the respiratory form of anthrax.
Choice D reason: Flu-like symptoms, such as fever, cough, malaise, muscle aches, and mild chest discomfort, are the initial and most indicative early findings of inhalation anthrax. These nonspecific symptoms often appear within several days after exposure before progressing to severe respiratory compromise.
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