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 C
Explanation
Choice A reason: "Use simple, childlike statements when speaking." This response is not appropriate because it can be demeaning and disrespectful to the client. The client is an adult who knows what they want to say, but they have difficulty saying it. Using simple statements is helpful, but they should not be childlike or patronizing.
Choice B reason: "Use a higher pitched tone of voice when speaking." This response is not appropriate because it can be irritating and confusing to the client. The client may have normal hearing, or they may have hearing loss due to age or stroke. Using a higher pitched tone of voice can make the speech harder to understand and may imply that the client is not intelligent.
Choice C reason: "Incorporate nonverbal cues in the conversation." This response is appropriate because nonverbal cues, such as gestures, facial expressions, and drawings, can help the client understand and express themselves better. Nonverbal cues can also reduce frustration and anxiety for both the client and the family member.
Choice D reason: "Ask multiple choice questions as part of the conversation." This response is not appropriate because it can be overwhelming and stressful for the client. Multiple choice questions can be hard to process and remember for someone with aphasia. It is better to ask yes or no questions, or to provide options with visual cues.
Correct Answer is A
Explanation
Choice A reason: Administering the medication 2 hr before exercise is a correct instruction for the parent of a child who has asthma and a prescription for montelukast granules. Montelukast is a leukotriene modifier that helps to prevent asthma attacks and exercise induced bronchoconstriction. It is taken once a day in oral form and may cause side effects such as stomach pain, diarrhea, or mood changes. For children who have exercise induced asthma, an additional dose of montelukast may be taken 2 hr before exercise.
Choice B reason: Giving the medication at the onset of wheezing is not a correct instruction for the parent of a child who has asthma and a prescription for montelukast granules. Montelukast is not a fast acting rescue medicine for asthma attacks and needs to be taken daily. It does not work quickly enough to relieve the symptoms of an acute asthma attack, such as wheezing, coughing, or shortness of breath. For an asthma attack, the child should use a short acting beta agonist inhaler, such as albuterol, as prescribed by the provider.
Choice C reason: Administering the granules mixed with 20 oz of water is not a correct instruction for the parent of a child who has asthma and a prescription for montelukast granules. Montelukast granules come in a sachet with 4 mg of granules inside (one dose). They can be placed directly on the child's tongue or mixed with a spoonful of cold or room temperature soft food, such as applesauce, mashed carrots, rice, or ice cream. They can also be mixed with 1 teaspoonful (5 mL) of cold or room temperature baby formula or breast milk. They should not be mixed with any other liquid drink other than baby formula or breast milk. The mixture should be taken within 15 minutes after opening the packet.
Choice D reason: Giving the medication in the morning daily is not a correct instruction for the parent of a child who has asthma and a prescription for montelukast granules. Montelukast works best when taken in the evening, as it can improve the symptoms of asthma and allergic rhinitis that occur at night or early in the morning. Taking it at the same time every day can also help to maintain a steady level of the drug in the body and prevent missed doses.
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