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This table shows the normal range of systolic, diastolic blood pressure and heart rate for both girls and boys

AgeSystolic BP boysDiastolic BP boysSystolic BP girlsDiastolic BP girsHeart rate boys & girls
61056810468120/min
71067010669120/min
81077110871120/min
91097211072120/min
101117311273120/min
111147411474120/min
121157411675100/min
131177511776100/min
141207511977100/min
151207612078100/min
161207812078100/min
171208012078100/min
181208012080100/min
Source: NHG standaard ADHD bij kinderen p. 1277

Use this as a guide to when you assess a child with ADHD or other conditions. Take note that any measurement should be taken into context of the entire medical background and history. Use with precaution and not as substitute for a clinical diagnosis.