A nurse is assessing a client’s cranial nerves as part of a neurological examination. Which of the following actions should the nurse take to assess cranial nerve III?
Eliciting the gag reflex
Checking the pupillary response to light
Observing for facial symmetry
Testing visual acuity
The Correct Answer is B
Choice A reason: Eliciting the gag reflex is not a valid way to assess cranial nerve III. The gag reflex is a protective mechanism that prevents choking or aspiration by triggering a contraction of the pharyngeal muscles when the back of the throat is stimulated. The gag reflex is mediated by cranial nerves IX and X, not III.
Choice B reason: Checking the pupillary response to light is a reliable way to assess cranial nerve III. The pupillary response to light is a reflex that causes the pupil to constrict when exposed to bright light and dilate when exposed to dim light. This reflex helps to regulate the amount of light that enters the eye and protects the retina from damage. The pupillary response to light is controlled by cranial nerve III, which innervates the sphincter pupillae muscle that constricts the pupil.
Choice C reason: Observing for facial symmetry is not a relevant way to assess cranial nerve III. Facial symmetry is the degree of similarity between the two halves of the face. Facial symmetry can be affected by various factors, such as genetics, aging, or facial nerve palsy. Facial nerve palsy is a condition that causes weakness or paralysis of the muscles that control facial expression. Facial nerve palsy is caused by damage to cranial nerve VII, not III.
Choice D reason: Testing visual acuity is not a sufficient way to assess cranial nerve III. Visual acuity is the ability to see fine details and distinguish objects at a distance. Visual acuity depends on various factors, such as the clarity of the lens and cornea, the shape of the eyeball, and the function of the retina. Visual acuity is mainly affected by cranial nerve II, which carries visual information from the retina to the brain. Cranial nerve III does not directly influence visual acuity, but it does innervate some of the muscles that move the eye and enable binocular vision.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This statement indicates that the child understands the role of allergens in triggering asthma symptoms and the importance of avoiding or reducing exposure to them. Allergens such as dust mites, animal dander, mold, and pollen can cause inflammation and constriction of the airways, leading to wheezing, coughing, and shortness of breath. The nurse should teach the child how to identify and eliminate or minimize allergens in the home, school, and outdoor environments.
Choice B reason: This statement is true, but it does not indicate that the child has learned how to manage the condition to prevent asthma attacks. Missing school days is a consequence of poorly controlled asthma, not a cause or a trigger¹². The nurse should teach the child how to use a written asthma action plan, which includes daily medications, peak flow monitoring, and rescue medications, to achieve good asthma control and reduce the risk of exacerbations.
Choice C reason: This statement is false and indicates that the child has a misconception about the impact of asthma on physical activity. Physical activity is beneficial for children with asthma, as it can improve lung function, cardiovascular fitness, and quality of life. The nurse should teach the child how to prevent exercise-induced bronchoconstriction, which is a common trigger of asthma symptoms, by using a short-acting bronchodilator before exercise, warming up and cooling down, and avoiding exercise in cold or polluted air.
Choice D reason: This statement is false and indicates that the child does not recognize the signs of poor asthma control. Coughing and shortness of breath in the morning are common symptoms of nocturnal asthma, which is a sign of uncontrolled asthma and a risk factor for severe asthma attacks. The nurse should teach the child how to monitor and record asthma symptoms and peak flow readings, and how to adjust medications according to the asthma action plan.
Correct Answer is C
Explanation
Choice A reason: The client exhales as the medication is released from the inhaler. This action is incorrect because it wastes the medication and reduces its effectiveness. The client should exhale before using the inhaler, not during.
Choice B reason: The client waits 10 minutes between inhalations. This action is incorrect because it delays the relief of the asthma symptoms. The client should wait only one minute between inhalations, unless instructed otherwise by the doctor.
Choice C reason: The client holds his breath for 10 seconds after inhaling the medication. This action is correct because it allows the medication to reach the lungs and bronchial tubes more effectively and reduce the inflammation and constriction of the airways.
Choice D reason: The client takes a quick inhalation while releasing the medication from the inhaler. This action is incorrect because it can cause the medication to hit the back of the throat and not reach the lungs. The client should take a slow and deep inhalation while using the inhaler.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.