What is the correct average blood pressure for a 7-year-old child?

The average blood pressure for a 7-year-old child typically falls within a range that accounts for their smaller size and developing cardiovascular system. Generally, systolic blood pressure can range from about 90 to 110 mmHg, while diastolic pressure typically ranges from 50 to 70 mmHg, depending on overall health, height, and weight.

The option that states 97/57 is consistent with these norms as it falls neatly within the expected ranges for both systolic and diastolic measurements for children in this age group. This indicates that it reflects a healthy and normal blood pressure, suggesting that the cardiovascular system is functioning well.

Other values presented may be outside the common ranges; for example, a systolic measurement of 113 might indicate elevated blood pressure for a child of this age, while a diastolic measurement of 40 from another option is too low to be typical for this developmental stage. Therefore, 97/57 is recognized as the most appropriate average blood pressure for a 7-year-old child.