To assess a client's pupillary reaction to accommodation, what action should the nurse take?
Observe pupil size when focusing on a near object and then a far object.
Compare the shape of each of the pupils bilaterally with normal room light.
Note the speed of pupil constriction when a penlight is shined into the eye.
Determine if dilation of the pupils occurs when the room is darkened.
The Correct Answer is A
Choice A Reason:
Observing pupil size when focusing on a near object and then a far object is correct. This choice is correct because it directly assesses the pupillary reaction to accommodation, which refers to the changes in pupil size that occur when the eyes shift focus between near and far objects. Observing the pupils while the client focuses on a near object and then a far object allows the nurse to assess how the pupils constrict (become smaller) or dilate (become larger) in response to changes in focus, providing valuable information about the client's accommodation reflex.
Choice B Reason:
Comparing the shape of each of the pupils bilaterally with normal room light is incorrect. While comparing the shape of each pupil bilaterally with normal room light is a valid assessment technique for evaluating pupillary size and symmetry, it does not specifically assess the pupillary reaction to accommodation. Therefore, this choice is not as directly relevant to assessing accommodation reflex as choice A.
Choice C Reason:
Noting the speed of pupil constriction when a penlight is shined into the eye is incorrect. This choice refers to assessing the pupillary light reflex, which involves observing the speed and extent of pupil constriction in response to a bright light stimulus. While this assessment is important for evaluating the pupillary response to light, it does not specifically assess accommodation, which involves changes in pupil size in response to changes in focus between near and far objects. Therefore, this choice is not directly relevant to assessing accommodation reflex.
Choice D Reason:
Determining if dilation of the pupils occurs when the room is darkened is incorrect. This choice involves assessing the pupillary response to changes in ambient light levels, which is known as the pupillary light reflex. While assessing pupil dilation in response to darkness is important for evaluating the pupillary response to changes in light, it does not specifically assess accommodation reflex. Therefore, this choice is not directly relevant to assessing accommodation reflex.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E"]
Explanation
C. Chronic obstructive pulmonary disease (COPD): COPD is a chronic respiratory condition characterized by airflow limitation, typically caused by chronic bronchitis and/or emphysema. In COPD, the airways become narrowed and inflamed, leading to difficulty breathing. Over time, chronic hypoxia (low oxygen levels in the blood) can develop due to impaired gas exchange in the lungs. Chronic hypoxia can trigger compensatory mechanisms in the body, including vascular changes that result in clubbing of the nails. Therefore, clubbed nails can often be seen in individuals with COPD as a consequence of chronic tissue hypoxia.
D. Lung cancer: Lung cancer is a malignant tumor that arises from the cells of the lungs. It is often associated with long-term smoking, as in the case of this client. Lung cancer can impair lung function and compromise gas exchange, leading to chronic hypoxia. As with COPD, chronic hypoxia can induce vascular changes that result in clubbing of the nails. Therefore, clubbed nails can be a manifestation of advanced lung cancer, particularly in cases where chronic hypoxia is present due to impaired lung function.
E. Chronic bronchitis: Chronic bronchitis is a type of chronic obstructive pulmonary disease (COPD) characterized by inflammation and narrowing of the airways, leading to excessive mucus production and persistent cough. Similar to other forms of COPD, chronic bronchitis can result in chronic hypoxia due to impaired gas exchange in the lungs. The chronic hypoxia associated with chronic bronchitis can lead to vascular changes that cause clubbing of the nails over time. Therefore, individuals with chronic bronchitis may also exhibit clubbed nails as a consequence of chronic tissue hypoxia.
Correct Answer is C
Explanation
Choice A Reason:
Giving the client an object to hold is not the most appropriate action before asking the client to flex his arms to assess muscle strength. While providing an object to hold may engage the muscles, it does not specifically target the muscles involved in arm flexion, which are primarily the biceps brachii and brachialis muscles. Therefore, it may not accurately assess muscle strength during arm flexion.
Choice B Reason:
Instructing the client to close his eyes is not the most appropriate action before asking the client to flex his arms to assess muscle strength. Instructing the client to close his eyes primarily tests proprioception and balance rather than muscle strength. While proprioception is an important aspect of overall neurological function, it is not directly related to assessing muscle strength during arm flexion.
Choice C Reason:
Applying resistance to the client's arms is the most appropriate action before asking the client to flex his arms to assess muscle strength. Applying resistance to the client's arms during flexion allows the nurse to evaluate the client's ability to generate force against resistance, providing a more accurate assessment of muscle strength in the biceps brachii and brachialis muscles.
Choice D Reason:
Palpating the client's muscle tone is not the most appropriate action before asking the client to flex his arms to assess muscle strength. While palpating muscle tone is important for assessing muscle integrity, it does not directly evaluate muscle strength during arm flexion. Muscle tone refers to the resting tension in a muscle and may not accurately reflect muscle strength during active movement.
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