A nurse is caring for a child who has dehydration. Which of the following findings should the nurse expect?
Hct 45%.
Urine specific gravity 1.035.
Capillary refill less than 2 seconds.
Urine output 35 ml/hr.
The Correct Answer is B
Choice A rationale:
Hct 45% (Choice A) refers to the hematocrit level, which measures the proportion of blood volume occupied by red blood cells. While dehydration can lead to elevated hematocrit due to hemoconcentration, a hematocrit value of 45% is within the normal range for both males and females. Dehydration might cause a mild increase, but more significant elevations would be expected in cases of severe dehydration.
Choice B rationale:
Urine specific gravity 1.035 (Choice B) is an indicator of concentrated urine, which is a characteristic finding in dehydration. Dehydration reduces the body's water content, leading to more concentrated urine with higher specific gravity values. A normal range for urine-specific gravity is typically between 1.005 and 1.030.
Choice C rationale:
Capillary refill of less than 2 seconds (Choice C) is not a finding consistent with dehydration. Capillary refill time measures the time it takes for color to return to the nailbed after pressure is applied. Prolonged capillary refill time might indicate poor peripheral perfusion, which can be a sign of dehydration, but a refill time of less than 2 seconds is considered within the normal range.
Choice D rationale:
A urine output of 35 ml/hr (Choice D) is not indicative of dehydration. In fact, a urine output of 35 ml/hr is relatively normal and suggests adequate fluid intake and hydration. Dehydration would typically result in reduced urine output as the body conserves water.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Positioning the child sitting with their buttocks at the edge of the table is not appropriate for collecting a bone marrow specimen from a preschooler. This position does not provide adequate access to the bone marrow aspiration site and may lead to discomfort for the child.
Choice B rationale:
Placing the child in a prone position (lying face down) is suitable for collecting a bone marrow specimen from a preschooler. This position exposes the posterior iliac crest, which is a common site for bone marrow aspiration. It allows for easier access to the bone marrow and reduces the risk of injury.
Choice C rationale:
Positioning the child side-lying to expose the vertebrae is not the recommended position for bone marrow aspiration. The iliac crest, not the vertebrae, is the usual site for this procedure in children. Placing the child in a side-lying position would make it difficult to access the appropriate site.
Choice D rationale:
Placing the child supine with legs flexed outward into a frog-like position is suitable for collecting a bone marrow specimen. This position provides access to the iliac crest while allowing for better immobilization of the child. It also ensures the child's safety and comfort during the procedure.
Correct Answer is C
Explanation
The correct answer is choice C. 6.8 to 7.7 kg (15 to 17 lb).
Choice A rationale:
This weight range is above the average for a 6-month-old infant. According to growth charts, the 50th percentile weight for a 6-month-old male is approximately 7.9 kg (17 lb 8 oz), and for a female, it’s about 7.3 kg (16 lb 1 oz). Therefore, 8.6 to 9.5 kg would be considered above average and not the anticipated weight for most infants.
Choice B rationale:
This weight range is below the average for a 6-month-old infant. The average weight at 6 months is significantly higher than 4.1 to 5 kg, as infants are expected to double their birth weight by 5 months of age. Therefore, an infant weighing between 9 to 11 lb at 6 months would be considered underweight.
Choice C rationale:
This weight range is within the average for a 6-month-old infant. As mentioned, the 50th percentile weights for 6-month-old infants are approximately 7.9 kg for males and 7.3 kg for females. This choice falls within the expected weight gain trajectory where an infant is anticipated to double their birth weight by 5 months and then gain an additional pound or so by 6 months.
Choice D rationale:
This weight range is significantly above the average for a 6-month-old infant. It is well above the 95th percentile for this age group and would be considered unusual without underlying health conditions that could contribute to such a weight at this age. An infant weighing between 23 to 25 lb at 6 months would be exceptionally rare and likely indicative of an abnormal growth pattern.
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