What would be considered normotension in a pediatric patient based on the mathematical equation SBP ≥ 90mmHg + (2xage)?

To determine normotension in pediatric patients, the established formula is systolic blood pressure (SBP) of 90 mmHg plus two times the patient's age in years. This equation accounts for growth and development, providing a tailored reference range for blood pressure based on age.

For a 6-year-old, the calculation would be:

SBP ≥ 90 mmHg + (2 x 6) = 90 mmHg + 12 = 102 mmHg.

Since the SBP of 110 mmHg exceeds the calculated threshold of 102 mmHg, it is considered to be within the range of normotension for this age group. This means not only does the measurement meet the minimum expected standard set by the formula, but it also reflects healthy cardiovascular status, which is important for accurate assessments and interventions in pediatric patients.

In contrast, for the other age groups, a 5-year-old (100 mmHg), an 8-year-old (120 mmHg), and a 7-year-old (130 mmHg) do not meet the same relative context, as they are either borderline or exceed the expected norms set by their respective ages according to the formula, indicating a less clear assessment of normotension.