RT Book, Section
A1 Kasper, Dennis L.
A1 Fauci, Anthony S.
A1 Hauser, Stephen L.
A1 Longo, Dan L.
A1 Jameson, J. Larry
A1 Loscalzo, Joseph
SR Print(0)
ID 1128782859
T1 Syncope
T2 Harrison's Manual of Medicine, 19e
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 9780071828529
LK accessmedicine.mhmedical.com/content.aspx?aid=1128782859
RD 2024/10/12
AB Syncope  is  a  transient,  self-limited  loss  of  consciousness  due  to  acute  global  impairment  of  cerebral  blood  flow.  It  may  occur  suddenly,  without  warning,  or  may  be  preceded  by  presyncopal  symptoms  such  as  light-headedness  or  faintness,  weakness,  fatigue,  nausea,  dimming  vision,  ringing  in  ears,  or  sweating.  The  syncopal  pt  appears  pale  and  has  a  faint,  rapid,  or  irregular  pulse.  Breathing  may  be  almost  imperceptible;  transient  myoclonic  or  clonic  movements  may  occur.  Recovery  of  consciousness  is  prompt  and  complete  if  pt  is  maintained  in  a  horizontal  position  and  cerebral  perfusion  is  restored.