Pediatrics: age changes the answer
A five-step development staircase across the page above two trend lines on the same age axis, heart rate and respiratory rate descending, blood pressure ascending, crossing near school age.
In pediatric items the child's age is the variable that rewrites the correct answer. Read the age before you read the question.
Infant Trust builds through consistent, prompt caregiving, and separation from the parent is the main stressor. Keep the caregiver present and involved in care. Expect stranger wariness in the second half of the first year.
Toddler Autonomy, ritual, and negativism. Offer two acceptable choices rather than an open question. Preserve routines from home, and expect regression during hospitalization as a normal response.
Preschooler Magical thinking and fear of bodily harm and mutilation. Use simple, literal words, allow a bandage even for a small puncture, and correct the belief that illness or hospitalization is punishment for something the child did.
School age Industry, competence, and a wish to do things correctly. Give concrete explanations, let the child handle the equipment beforehand, and protect privacy and modesty.
Adolescent Identity, peers, and body image. Interview part of the visit without the parent present, address confidentiality directly and honestly, and treat nonadherence as a developmental issue rather than defiance.
Vital sign direction Heart rate and respiratory rate fall as a child grows; blood pressure rises. Children compensate with heart rate, so tachycardia is the first sign of a deteriorating child and hypotension is late and ominous.
Fluid status Children dehydrate quickly because of their body water proportion and surface area. Body weight is the most reliable measure of loss. Assess for fewer wet diapers, absent tears, a sunken fontanel in the infant, dry mucous membranes, and lethargy.
Safety by age The hazard tracks mobility: aspiration and falls in the infant, poisoning and drowning in the toddler, bicycle and pedestrian injury at school age, motor vehicles and risk behavior in adolescence. The exam pairs an age with a hazard, and the mismatched pairing is the distractor.
Margin noteage changes the answer, every single time.
Watch outa falling blood pressure in a child is decompensation, not an early warning.
TakeawayRead the child's age first, because it decides the safety hazard, the communication approach, and the meaning of the vital signs.
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