RT Book, Section
A1 Brown, Gabrielle
A1 Desvarieux, Tricia
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102569454
T1 Blood Pressures and Resistances
T2 Anesthesiology Core Review: Part One Basic Exam
YR 2014
FD 2014
PB McGraw-Hill Education
PP New York, NY
SN 9780071821377
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102569454
RD 2024/04/25
AB Blood  pressure  is  the  force  exerted  by  blood  against  vessel  walls.  More  specifically,  blood  pressure  refers  to  the  pressure  of  blood  within  the  circulatory  system’s  arteries.  Arterial  blood  pressure  is  determined  by  the  cardiac  cycle’s  systole  and  diastole.  During  ventricular  contraction,  or  systole,  blood  exits  the  heart’s  right  and  left  ventricle  into  the  pulmonary  artery  and  aorta,  causing  pressures  in  these  arteries  to  rise  steeply.  Systolic  blood  pressure  (SBP)  is  the  maximum  pressure  achieved  during  ventricular  contraction.  When  ventricles  relax  during  diastole,  they  fill  with  blood  in  preparation  for  the  next  contraction,  and  arterial  blood  pressure  drops.  Diastolic  blood  pressure  (DBP)  is  the  blood  pressure  following  contraction  of  the  heart,  during  heart  chamber  refilling,  and  represents  the  lowest  arterial  pressure  prior  to  the  next  contraction  cycle.  The  difference  between  systolic  and  diastolic  pressures  is  the  pulse  pressure.