Replace static vital signs table with interactive age group dropdown.
Each selection shows: HR (awake/sleeping), RR, SBP, DBP, temperature,
SpO2 target, weight range, and age-specific clinical notes.
10 age groups: preterm through 18 years. Values from Harriet Lane
Handbook 23rd Edition. Includes AAP 2017 BP classification thresholds
for ages 13+, ETT sizing formulas, and clinical pearls (orthostatic
testing, febrile tachycardia, athletic bradycardia, etc.).
Full reference table preserved as collapsible "View All Age Groups".
0630e460e8