- Orthostatic vital signs which result in: A pulse increase of more than 30 beats per minute after 3 minutes standing (compared with semi-recumbent pulse rate); or A pulse rate greater than 100 bpm after 3 minutes standing; or A drop in systolic blood pressure decrease of at least 20 mm Hg; or A diastolic blood pressure decrease of at least 10 mm Hg within 3 minutes of standing (compared with semi-recumbent blood pressure).