A 15 kg child has a urine output of 360 mL during the past 12 hours.

Calculate the child’s urine output in mL/kg/hour for this period of time (Do not enter units).

Choice A reason:

Assessing fluid intake is important in managing dehydration, but it is not the most critical assessment before initiating an IV infusion containing potassium chloride (KCL). Fluid intake provides information about the child’s hydration status but does not directly indicate kidney function. Since potassium can cause hyperkalemia if not properly excreted, monitoring urine output is more crucial.

Choice B reason:

Urine output is the most important assessment before initiating an IV infusion containing potassium chloride (KCL). This is because adequate urine output indicates that the kidneys are functioning properly and can excrete excess potassium. Administering potassium chloride without ensuring proper kidney function can lead to hyperkalemia, a potentially life-threatening condition. Therefore, checking urine output is essential to prevent complications.

Choice C reason:

Capillary refill is a useful assessment for evaluating peripheral perfusion and hydration status. However, it does not provide direct information about kidney function or the body’s ability to excrete potassium. While capillary refill can be part of the overall assessment, it is not the most critical factor before administering an IV infusion with potassium chloride.

Choice D reason:

The number of stools is relevant in assessing dehydration, especially if the child has been experiencing diarrhea. However, like fluid intake, it does not directly indicate kidney function. Monitoring urine output is more important before administering potassium chloride to ensure the kidneys can handle the additional potassium load.

Choice A reason:

Weight gain is not a primary concern in the management of hypothyroidism in infancy. While hypothyroidism can lead to weight gain due to a slower metabolism, the more critical issue is the impact on brain development. Early and adequate treatment of hypothyroidism is essential to prevent intellectual disabilities and ensure normal neurocognitive outcomes.

Choice B Reason:

Rapid gut motility and diarrhea are not typical symptoms of hypothyroidism. In fact, hypothyroidism is more commonly associated with constipation due to a slower metabolism. Therefore, this choice is not relevant to the prompt management of hypothyroidism in infancy.

Choice C Reason:

Infancy is indeed a critical period for brain development. Untreated hypothyroidism during this time can lead to severe intellectual disabilities and developmental delays. Early diagnosis and treatment with thyroid hormone replacement are crucial to ensure normal brain development and cognitive function.

Choice D Reason:

Hyperactivity and irritability are not common symptoms of hypothyroidism. In fact, hypothyroidism often leads to lethargy and decreased activity levels. Therefore, this choice is not relevant to the prompt management of hypothyroidism in infancy.