Normal Blood Pressure for a 14‑Year‑Old Girl: AAP Guidelines

Blood pressure norms in adolescents are based on age, sex, and height percentile—not a single number. The American Academy of Pediatrics (AAP) 2017 Clinical Practice Guideline provides percentile‑based tables.

Approximate Reference Ranges (50th Height Percentile)

Percentile	Systolic (mmHg)	Diastolic (mmHg)
Normal (<90th)	≤119	≤79
Elevated (90th–95th)	120–125	80–83
Stage 1 HTN (≥95th)	≥126	≥84
Stage 2 HTN (≥95th + 12 mmHg)	≥138	≥96

Values vary ±5–10 mmHg across height percentiles. Always use the official AAP tables or calculator.

Measurement Best Practices

• Seated 5 min, feet flat, back supported.
• Correct cuff size (bladder encircles 80–100% arm circumference).
• Average ≥2 readings on ≥2 occasions.

When to Investigate

• Repeated readings ≥90th percentile → confirm with ambulatory BP monitoring (ABPM).
• Secondary causes (renal, endocrine, vascular) more common in adolescents than adults.
• Lifestyle: reduce sodium, increase activity, healthy weight, sleep.

Action

If your daughter’s BP is outside the normal range for her age/sex/height, consult her pediatrician for proper percentile‑based assessment and follow‑up.