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 B
Explanation
The correct answer is: d. On the nonoperative side
Choice A: Prone
Reason: Placing a patient in the prone position (lying face down) after a pneumonectomy is generally not recommended. This position can compromise respiratory function by restricting chest expansion and increasing the risk of respiratory complications. Additionally, it can place undue pressure on the surgical site, potentially leading to complications such as impaired wound healing or increased pain.
Choice B: Semi-Fowler’s
Reason: The Semi-Fowler’s position (head of the bed elevated to 30-45 degrees) is often used to promote lung expansion and reduce the risk of aspiration. While it can be beneficial for general postoperative care, it is not the optimal position for a patient who has undergone a pneumonectomy. This position does not specifically address the need to prevent fluid accumulation in the remaining lung.
Choice C: Sims
Reason: The Sims position (lying on the side with one leg bent) is typically used for procedures such as enemas or to facilitate drainage of oral secretions. It is not suitable for a postoperative pneumonectomy patient because it does not provide the necessary support to the remaining lung and can increase the risk of fluid shifting to the nonoperative side.
Choice D: On the nonoperative side
Reason: Placing the patient on the nonoperative side is the correct position. This position helps to prevent fluid from accumulating in the remaining lung and reduces the risk of complications such as mediastinal shift or respiratory distress. By positioning the patient on the nonoperative side, gravity helps to keep the remaining lung expanded and functional.
Correct Answer is B
Explanation
Choice A reason: Placing food on the weaker side of the mouth when eating is not an effective strategy for a client who has dysphagia. This can increase the risk of choking or aspiration, as the food may not be chewed properly or may slip into the airway. The client should place food on the stronger side of the mouth and use the tongue to move it to the back of the throat for swallowing.
Choice B reason: Tilting the head forward when swallowing is an effective technique for a client who has dysphagia. This can help to close off the airway and prevent food or liquid from entering the lungs. The client should also tuck the chin down to the chest and swallow hard.
Choice C reason: Coughing while swallowing food is not a desirable outcome for a client who has dysphagia. This can indicate that the food is going into the wrong pipe and causing irritation or obstruction. The client should try to avoid coughing while swallowing and clear the throat after each bite or sip.
Choice D reason: Sitting at a 30° angle while eating meals is not a sufficient position for a client who has dysphagia. This can still allow food or liquid to flow back into the throat and cause choking or aspiration. The client should sit upright at a 90° angle and remain in that position for at least 30 minutes after eating.
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