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
A sign of increased intracranial pressure (ICP) in a 10-year-old child is a headache. Headache is a common symptom associated with increased pressure within the cranial cavity. It can be a result of various conditions that cause elevated intracranial pressure, such as brain tumours, intracranial haemorrhage, hydrocephalus, or brain trauma. The headache may be described as persistent, worsening, or accompanied by other symptoms such as nausea, vomiting, or changes in neurological status.
tachypnoea (rapid breathing), in (option A) is incorrect because it is not a specific sign of increased intracranial pressure. It can be seen in various conditions, including respiratory and cardiovascular disorders, anxiety, or physical exertion.
bulging fontanel in (option B) is incorrect because it, is more commonly observed in infants and is not typically seen in older children. The fontanelles (soft spots) on an infant's skull normally close by the age of 18-24 months.
an increase in head circumference in (option D) is incorrect because it, may be a sign of increased intracranial pressure in infants. However, in a 10-year-old child, the fontanelles are typically closed, and head circumference growth is not a reliable indicator of increased intracranial pressure
Correct Answer is B
Explanation
The primary concern when it comes to a synthetic cast is to keep it dry during bathing or showering. Moisture can weaken the cast material and lead to skin irritation or infection. Therefore, covering the cast with plastic and waterproof tape helps to protect it from getting wet.
Applying a heating pad to the cast if the child has swelling in the affected extremity in (Option A) is incorrect because applying a heating pad to the cast can increase the risk of burns and is not recommended. If the child has swelling in the affected extremity, it is important to elevate the limb and follow any specific instructions provided by the healthcare provider.
Splitting the cast if the child complains of numbness or pain in (Option C) is also incorrect. Splitting the cast, or attempting to modify or adjust it, should not be done without medical supervision. If the child complains of numbness or pain, it is important to notify the healthcare provider for further evaluation and appropriate management.
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Wrapping the outer surface of the cast with an Ace bandage in (Option D) is incorrect as well. Wrapping the outer surface of the cast with an Ace bandage or any additional material is not recommended unless specifically instructed by the healthcare provider. It can affect the fit of the cast, alter the healing process, and potentially cause complications |
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