Medicine Orthostatic hypotension is said to be present, if systolic blood pressure falls by_____while assuming standing posture from sitting posture. A >10 mm Hg B >20 mm Hg C >30 mm Hg D >40 mm Hg 💡 Explanation Orthostatic hypotension is said to be present, if systolic blood pressure falls by_____while assuming standing posture from sitting posture. ✓ Correct Answer: B. >20 mm Hg