RT Book, Section
A1 Walker, Mark F.
A1 Daroff, Robert B.
A2 Loscalzo, Joseph
A2 Fauci, Anthony
A2 Kasper, Dennis
A2 Hauser, Stephen
A2 Longo, Dan
A2 Jameson, J. Larry
SR Print(0)
ID 1198208326
T1 Dizziness and Vertigo
T2 Harrison's Principles of Internal Medicine, 21e
YR 2022
FD 2022
PB McGraw-Hill Education
PP New York, NY
SN 9781264268504
LK accesspharmacy.mhmedical.com/content.aspx?aid=1198208326
RD 2024/04/18
AB Dizziness  is  an  imprecise  symptom  used  to  describe  a  variety  of  common  sensations  that  include  vertigo,  light-headedness,  faintness,  and  imbalance.  Vertigo  refers  to  a  sense  of  spinning  or  other  motion  that  may  be  physiological,  occurring  during  or  after  a  sustained  head  rotation,  or  pathological,  due  to  vestibular  dysfunction.  The  term  light-headedness  is  classically  applied  to  presyncopal  sensations  resulting  from  brain  hypoperfusion  but  as  used  by  patients  has  little  specificity,  as  it  may  also  refer  to  other  symptoms  such  as  disequilibrium  and  imbalance.  A  challenge  to  diagnosis  is  that  patients  often  have  difficulty  distinguishing  among  these  various  symptoms,  and  the  words  they  choose  do  not  reliably  indicate  the  underlying  etiology.