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HOW TO READ
ELECTROCARDIOGRAPHY
ZULKARNAINI
Department of Cardiolo! and "a#$%lar &edi$ine
'a$%lt! of &edi$ine Uni(er#it! of Indone#ia
National Cardio(a#$%lar Center Harapan Kita
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")"*
"+
","-
".
")R"*R
"+R",R
&id$la(i$%lar line
Anterior a/illar! line
&ida/illar! line
Unipolar Pre$odial 0C1e#t2 Lead#
Mervin J. Goldman, MD. 11thedition Principles of clinical Electrocardiography. Clinical Professor of Medicine University ofCalifornia School of Medicine San Francisco @199!19"#
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V7 V8V9 V9RV8RV7R
Horizontal plane ofV4-6
Unipolar Pre$odial 0C1e#t2 Lead#
Mervin J. Goldman, MD. 11thedition Principles of clinical Electrocardiography. Clinical Professor of Medicine University ofCalifornia School of Medicine San Francisco @199!19"#
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T1e ele$tro$ardioram
0ECG2 ill%#trate#
$ond%$tion of ele$tri$al
imp%l#e# in t1e 1eart3
T1e depolari4ation of t1e
(entri$le# o$$%r# from
t1e endo$ardi%m0in#ide2 to t1e
epi$ardi%m 0o%t#ide2
5e6
T1e repolari4ation of t1e
(entri$le# o$$%r# in t1e
oppo#ite dire$tion3 56
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ECG INTERPRETATION.3 RATE
-3 RHYTH&
,3 A7I8
+3 HIPERTROPHIC 8IGN8
*3 &YOCARDIAL IN'ARCTION
)3 ARRHYTH&IA
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.3 RATE
Normal 1eart rate 9 ): ; .:: /
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-3 RHYTH&
Normal $ardia$ r1!t1m 9 8INU8 r1!t1m
8in%# r1!t1m $1ara$teri#ti$# 9Rate ):.:: @pmCon#tant R ; R inter(alNeati(e P Fa(e in a"R and po#iti(e di IIP Fa(e i# alFa!# folloFed @! R8 $omple/
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,3 A7I8
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+3 HYPERTROPHIC 8IGN8
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*3 &YOCARDIAL IN'ARCTION
Ischemia
Injury Necrosis
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ANTERIOR IN'ARCTION
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IN'ERIOR IN'ARCTION
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PO8TEROLATERAL IN'ARCTION
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ARRHYTH&IA
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A" ?LOCK
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WHATB8 WRONG
Lead Error9 ". and ", are Tran#po#ed
In this normal 12-lead ECG the V1 and V3 chest electrodes are
interchanged. Exerienced ECG interreters should !e a!le to sot this
lead lacement error.
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"I#C$##I%N
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#inus arrhythmia
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&im! lead re'ersal
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Early reolari(ation
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#u!endocardial ischemia.
)nterolateral #*-se ment de ression
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$nsta!le angina
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acute anterolateral myocardial in+arction
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,igh lateral in+arction
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&ateral myocardial in+arction
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ight 'entricular in+arction
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)cute in+eroosterior myocardial in+arction
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le+t 'entricular aneurysm
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o!it( I
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,igh-grade atrio'entricular !loc/
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0ol++-ar/inson-0hite syndrome
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0ol++-ar/inson-0hite syndrome
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)trial +i!rillation
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)trial +lutter
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remature 'entricular contraction
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#ura'entricular tachycardia
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0ide comlex tachycardia
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Ventricular +lutter
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