Blood Pressure Percentile Formula:
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Definition: This calculator determines a child's blood pressure percentile based on age, height, sex, and blood pressure measurements.
Purpose: It helps healthcare providers assess whether a child's blood pressure is normal for their age and size.
The calculator uses standardized pediatric blood pressure tables that account for:
Where:
Explanation: The calculator compares the measured BP against normative data for children of the same age, height, and sex.
Details: Children's BP norms vary by growth and development. Percentiles help identify hypertension or hypotension early.
Tips: Enter the child's exact age, measured height, sex, and recent blood pressure measurements for accurate results.
Q1: What is a normal BP percentile for children?
A: Generally, <90th percentile is normal, 90-95th is elevated, and ≥95th indicates hypertension.
Q2: How often should children's BP be checked?
A: Annually for children ≥3 years, or more frequently if risk factors exist.
Q3: What if my child's BP is high?
A: Consult a pediatrician. Elevated readings should be confirmed on multiple occasions.
Q4: Are these percentiles based on US data?
A: Yes, they follow the American Academy of Pediatrics clinical practice guidelines.
Q5: Why does height matter in BP assessment?
A: Taller children typically have higher normal BP ranges than shorter peers of the same age.