What is the blood pressure threshold for hypotension in children older than 10 years?

In children over the age of 10, the threshold for hypotension is set at a systolic blood pressure (SBP) of less than 90 mmHg. This standard reflects the physiological differences between children and adults, particularly as blood pressure norms vary with age and size.

In adults, hypotension is generally recognized when systolic blood pressure falls below 90 mmHg, which is why this value applies to older children as well. Maintaining awareness of this threshold is crucial for effective assessment and intervention in pediatric emergencies, where prompt recognition of hypotension can significantly impact outcomes.

The other values provided would not align with the established guidelines for diagnosing hypotension in this age group. Thus, a systolic blood pressure below 90 mmHg is the appropriate threshold for identifying hypotension in children older than 10 years.