141 lines
4.8 KiB
JSON
141 lines
4.8 KiB
JSON
{
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"version": "1.0",
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"source": "Harriet Lane Handbook 23rd Edition reference values",
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"ageGroups": {
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"premie": {
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"label": "Premie",
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"hr": { "awake": "120-170", "sleeping": "100-150" },
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"rr": "40-70",
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"sbp": "55-75",
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"dbp": "35-45",
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"temp": "36.5-37.5",
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"weight": "0.5-2.5 kg",
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"spo2": "88-95% (target)",
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"notes": [
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"HR and RR are highly variable and depend on gestational age",
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"BP increases with gestational age and postnatal age",
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"Target SpO2 88-95% to reduce retinopathy of prematurity risk",
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"Temperature instability is common - use servo-controlled warmers",
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"Bradycardia (<100 bpm) and apnea are common in premature infants"
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]
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},
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"0-3mo": {
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"label": "0-3 Months",
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"hr": { "awake": "100-150", "sleeping": "85-135" },
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"rr": "35-55",
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"sbp": "65-85",
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"dbp": "45-55",
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"temp": "36.5-37.5",
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"weight": "2.5-6 kg",
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"spo2": ">95%",
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"notes": [
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"HR normally increases with crying (up to 180-190 bpm) - this is physiologic",
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"Periodic breathing (pauses <10 sec) is normal in neonates",
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"Acrocyanosis (blue hands/feet) is normal; central cyanosis is not",
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"BP is best measured in the right arm (pre-ductal) in neonates",
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"Normal weight loss of 5-7% in first 3-5 days; regain by 10-14 days"
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]
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},
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"3-6mo": {
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"label": "3-6 Months",
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"hr": { "awake": "90-120", "sleeping": "75-110" },
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"rr": "30-45",
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"sbp": "70-90",
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"dbp": "50-65",
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"temp": "36.5-37.5",
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"weight": "5-8 kg",
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"spo2": ">95%",
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"notes": [
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"Expected weight gain: 20-30 g/day (150-200 g/week)",
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"HR gradually decreases as vagal tone matures",
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"RR >60 at rest may indicate lower respiratory tract disease",
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"BP should be measured with appropriate cuff size (width 40% of arm circumference)"
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]
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},
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"6-12mo": {
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"label": "6-12 Months",
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"hr": { "awake": "80-120", "sleeping": "70-110" },
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"rr": "25-40",
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"sbp": "80-100",
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"dbp": "55-65",
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"temp": "36.0-37.5",
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"weight": "8-10 kg",
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"spo2": ">95%",
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"notes": [
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"Expected weight: triple birth weight by 12 months (~10 kg average)",
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"Weight gain slows to ~10-15 g/day",
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"Sinus arrhythmia (HR varies with breathing) is normal",
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"Febrile tachycardia: HR increases ~10 bpm per 1 degree C above 37"
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]
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},
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"1-3yr": {
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"label": "1-3 Years",
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"hr": { "awake": "70-110", "sleeping": "60-100" },
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"rr": "20-30",
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"sbp": "90-105",
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"dbp": "55-70",
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"temp": "36.0-37.5",
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"weight": "10-15 kg",
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"spo2": ">95%",
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"notes": [
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"Expected weight gain: ~200-250 g/month (2-2.5 kg/year)",
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"Tachycardia: HR >110 at rest warrants evaluation",
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"Tachypnea: RR >30 at rest may indicate respiratory distress",
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"BP screening begins at age 3 per AAP 2017 guidelines",
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"Estimated weight: 2 x (age in years) + 8"
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]
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},
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"3-6yr": {
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"label": "3-6 Years",
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"hr": { "awake": "65-110", "sleeping": "55-100" },
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"rr": "20-25",
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"sbp": "95-110",
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"dbp": "60-75",
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"temp": "36.0-37.5",
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"weight": "14-20 kg",
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"spo2": ">95%",
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"notes": [
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"Annual BP screening recommended from age 3",
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"Normal BP <90th percentile for age, sex, and height",
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"Elevated BP: 90th to <95th percentile (or 120/80 if lower)",
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"Estimated weight: 2 x (age in years) + 8",
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"ETT size (uncuffed): (age/4) + 4"
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]
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},
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"6-12yr": {
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"label": "6-12 Years",
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"hr": { "awake": "60-95", "sleeping": "50-85" },
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"rr": "14-22",
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"sbp": "100-120",
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"dbp": "60-75",
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"temp": "36.0-37.5",
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"weight": "20-40 kg",
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"spo2": ">95%",
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"notes": [
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"Resting HR >95 or <60 warrants evaluation",
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"BP should be measured at every clinical encounter",
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"Stage 1 HTN: >=95th percentile on 3 separate occasions",
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"Estimated weight: 3 x (age in years) + 7",
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"ETT size (cuffed): (age/4) + 3.5"
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]
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},
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">12yr": {
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"label": ">12 Years",
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"hr": { "awake": "55-85", "sleeping": "45-75" },
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"rr": "12-18",
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"sbp": "110-135",
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"dbp": "65-85",
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"temp": "36.0-37.5",
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"weight": "40-80 kg",
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"spo2": ">95%",
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"notes": [
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"Vital signs approach adult values",
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"From age 13: use adult BP thresholds (AAP 2017)",
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"Normal: <120/<80 mmHg; Elevated: 120-129/<80 mmHg",
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"Stage 1 HTN: 130-139/80-89 mmHg; Stage 2 HTN: >=140/>=90 mmHg",
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"Orthostatic vitals: measure lying, sitting, standing if dizzy",
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"Athletic bradycardia (HR 45-60) may be normal in trained adolescents"
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]
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}
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}
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}
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