TY  - CHAP
M1  - Book, Section
TI  - Electrocardiography
A1  - Goldberger, Ary L.
A2  - Jameson, J. Larry
A2  - Fauci, Anthony S.
A2  - Kasper, Dennis L.
A2  - Hauser, Stephen L.
A2  - Longo, Dan L.
A2  - Loscalzo, Joseph
PY  - 2018
T2  - Harrison's Principles of Internal Medicine, 20e
AB  - An  electrocardiogram  (ECG  or  EKG)  is  a  graphic  representation  of  electrical  activity  generated  by  the  heart.  The  signals,  detected  by  means  of  metal  electrodes  attached  to  the  extremities  and  chest  wall,  are  amplified  and  recorded  by  the  electrocardiograph.  ECG  leads  (derivations)  are  configured  to  display  the  instantaneous  differences  in  potential  between  specific  pairs  of  electrodes.  The  utility  of  the  ECG  derives  from  its  immediate  availability  as  a  noninvasive,  inexpensive,  and  highly  versatile  test.  In  addition  to  its  use  in  detecting  arrhythmias  and  myocardial  ischemia,  it  may  reveal  findings  related  to  life-threatening  metabolic  disturbances  or  to  increased  susceptibility  to  sudden  cardiac  arrest  (see  also  Chaps.  299  and  401).  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/19
UR  - accesspharmacy.mhmedical.com/content.aspx?aid=1157018608
ER  -