Which statement best describes why infants are at greater risk for dehydration than older children?
Infants have an increased ability to concentrate urine.
Infants have an increased extracellular flued volume
Infants have a greater volume of intracellular fluid.
Infants have a smaller body surface area.
The Correct Answer is B
The statement that best describes why infants are at greater risk for dehydration than older children is option B. Infants have an increased extracellular fluid volume compared to older children. This means that a larger proportion of their total body fluid is located outside the cells, in the extracellular compartment. This higher extracellular fluid volume makes infants more susceptible to fluid losses and dehydration if they experience inadequate fluid intake or increased fluid losses.
infants have an increased ability to concentrate urine in (option A), is incorrect. Infants have limited renal function and may have difficulty concentrating urine compared to older children and adults. This can contribute to a higher risk of dehydration in infants.
infants have a greater volume of intracellular fluid in (option C), is incorrect. The volume of intracellular fluid is not the primary factor contributing to the increased risk of dehydration in infants.
infants have a smaller body surface area in (option D) is incorrect because it, is not directly related to the increased risk of dehydration. Body surface area influences heat exchange and fluid loss through sweating but is not the main factor contributing to the higher risk of dehydration in infants.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Diarrhea is characterized by increased motility of the intestines, which leads to a decreased absorption of fluid and nutrients. This statement correctly indicates an understanding of the teaching regarding diarrhea.
Organisms destroy intestinal mucosal cells, resulting in an increased intestinal surface area in (Option A) is incorrect because organisms causing diarrhea can lead to damage or inflammation of the intestinal mucosal cells, but they do not destroy them to increase the intestinal surface area.
Malabsorption results in metabolic alkalosis in (Option B) is incorrect because malabsorption does not result in metabolic alkalosis. Malabsorption refers to the impaired absorption of nutrients, but it does not directly affect the acid-base balance in the body.
Diarrhea results from a fluid deficit in the small intestine in (Option D) is incorrect because diarrhea does not result from a fluid deficit in the small intestine. Diarrhea is characterized by an increased volume of fluid in the intestines and increased frequency of bowel movements.
Correct Answer is D
Explanation
In this scenario, the child's increased urination after a serious motor vehicle crash may
indicate a potential issue with fluid balance. Monitoring the child's intake and output is the
priority action for the nurse. This involves accurately measuring and recording the fluids the
child consumes (intake) and the fluids the child eliminates through urine, sweat, and other
sources (output). By closely monitoring the child's intake and output, the nurse can assess the
child's fluid status and identify any abnormalities or imbalances that may require further
intervention.
Restrict dietary sodium intake in (option A) is incorrect because restricting dietary sodium
intake, may be necessary in certain situations, such as if the child has a known sodium
imbalance or hypertension. However, it is not the priority action in this scenario.
Assess the daily serum sodium level in (option B) is incorrect because assessing the daily
serum sodium level, is important to evaluate the child's electrolyte balance. However, it is not
the priority action compared to monitoring the child's intake and output.
Weigh the child daily in (option C) is incorrect because weighing the child daily, is a useful
measure to assess changes in fluid balance. However, it is not the priority action in this
scenario compared to monitoring the child's intake and output, which provides real-time
information on fluid balance.
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