PMID- 12563580 OWN - NLM STAT- MEDLINE DCOM- 20030225 LR - 20191210 IS - 0735-6757 (Print) IS - 0735-6757 (Linking) VI - 21 IP - 1 DP - 2003 Jan TI - Unique cutpoints for sitting-to-standing orthostatic vital signs. PG - 45-7 AB - The study objective was to describe the distribution of normal changes in vital signs related to moving from a sitting to a standing position. Subjects were free of cardiovascular disease and determined to be euvolemic by structured interview. Vital signs were measured after a minimum of 5 minutes of sitting and after 1 minute of standing. Among 176 subjects, mean differences in parameters (+/- standard deviation) were as follows: pulse increase, 5.3 +/- 6.6 beats per minute (bpm); systolic blood pressure (SBP) decrease, 1.2 +/- 9.8 mmHg; and shock index (SI) increase, 0.05 +/- 0.07 bpm/mmHg. These changes are less extreme than those previously published for changes from lying to standing. Unique tilt test positivity criteria and their expected specificities are as follows: pulse increase >/=20 bpm (0.98), SBP decrease >/=20 mmHg (0.97), SI increase >/=0.2 (0.99), ROSI >/=1.3 (0.95). Sitting-to-standing tilt tests require positivity criteria distinct from those published for lying-to-standing tilt tests. CI - Copyright 2003, Elsevier Science (USA). All rights reserved.) FAU - Witting, Michael D AU - Witting MD AD - Division of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA. mwitt001@umaryland.edu FAU - Gallagher, Katherine AU - Gallagher K LA - eng PT - Journal Article PL - United States TA - Am J Emerg Med JT - The American journal of emergency medicine JID - 8309942 SB - IM MH - Adult MH - Blood Pressure/*physiology MH - Dizziness/*physiopathology MH - Female MH - Heart Rate/*physiology MH - Humans MH - Male MH - *Outcome Assessment, Health Care MH - Posture/*physiology MH - *Pulse MH - Reference Values MH - Sensitivity and Specificity MH - Tilt-Table Test MH - Time Factors EDAT- 2003/02/04 04:00 MHDA- 2003/02/26 04:00 CRDT- 2003/02/04 04:00 PHST- 2003/02/04 04:00 [pubmed] PHST- 2003/02/26 04:00 [medline] PHST- 2003/02/04 04:00 [entrez] AID - S0735675702422103 [pii] AID - 10.1053/ajem.2003.50009 [doi] PST - ppublish SO - Am J Emerg Med. 2003 Jan;21(1):45-7. doi: 10.1053/ajem.2003.50009.