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 D
Explanation
Choice A Reason:
White blood cell count (WBC) is inappropriate. White blood cell count is typically monitored to assess for signs of infection or inflammation. While it's important to monitor WBC count in certain situations, such as suspected infection, melena itself is not directly indicative of an increased risk of infection. Therefore, monitoring WBC count may not be the most immediate response to the finding of melena.
Choice B Reason:
Glucose is inappropriate. Glucose monitoring is essential for patients with diabetes or those at risk of hypoglycemia or hyperglycemia. However, melena is not directly related to glucose metabolism or regulation. Therefore, monitoring glucose levels would not be the most relevant response to the finding of melena.
Choice C Reason:
Blood urea nitrogen (BUN) is inappropriate. Blood urea nitrogen is often monitored to assess kidney function and hydration status. While severe bleeding can potentially lead to hypovolemia and prerenal azotemia (elevated BUN due to decreased renal perfusion), monitoring BUN would not be the immediate response to the finding of melena. Instead, assessing for signs of hypovolemia and monitoring other markers of blood loss, such as hematocrit, would be more appropriate.
Choice D Reason:
Hematocrit is appropriate. Melena refers to the passage of black, tarry stools containing blood that has been digested. It indicates upper gastrointestinal bleeding, typically from the stomach or upper small intestine. Monitoring the hematocrit level is important because significant bleeding, as indicated by melena, can lead to a decrease in the hematocrit level due to the loss of red blood cells and plasma volume. Monitoring the hematocrit helps assess the severity of the bleeding and guides treatment decisions, such as the need for blood transfusions. Therefore, the nurse should monitor the hematocrit level in response to the finding of melena.
Correct Answer is C
Explanation
Choice A Reason:
Assessing conjunctival sacs of lower lids for pallor is incorrect. Pallor of the conjunctival sacs, or inner eyelids, may indicate anemia or decreased blood flow. While it can be a sign of various health conditions, it is not specific to jaundice. Jaundice is characterized by yellowing of the skin and sclerae (the white part of the eyes) due to elevated bilirubin levels in the blood, so assessing for pallor would not directly confirm jaundice.
Choice B Reason:
Observing the client's urine for dark orange color is incorrect. Dark orange urine may indicate concentrated urine or dehydration, but it is not specific to jaundice. Jaundice primarily manifests as yellowing of the skin and sclerae due to elevated bilirubin levels, rather than a change in urine color. While changes in urine color may occur in certain liver conditions, such as obstructive jaundice, it is not the most direct or reliable method to confirm jaundice.
Choice C Reason:
Examining client's sclera for icterus is correct. Icterus, or yellowing of the sclerae (the white part of the eyes), is a classic sign of jaundice. Elevated levels of bilirubin in the blood lead to the yellow discoloration of the sclerae, providing a direct visual confirmation of jaundice. Examining the sclerae for icterus is a quick and reliable method to confirm jaundice during a physical assessment.
Choice D Reason:
Reviewing recent serum bilirubin levels is incorrect. Reviewing recent serum bilirubin levels can provide objective data on bilirubin levels in the blood, which may support the diagnosis of jaundice. Elevated serum bilirubin levels are characteristic of jaundice. While this option provides valuable information, it may not be immediately available during a physical assessment and does not directly confirm jaundice visually, unlike examining the sclerae for icterus.
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