⇧
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ECG
steps
⇲
1 | rate
2 | rhythm
3 | axis
4 | intervals
5 | p waves
6 | qrs complexes
7 | st segments
8 | t waves
specific diagnoses
⇲
acquired long qt
amiodarone toxicity
arvc/d
calcium imbalance
cardiac amyloidosis
cardiac arrest
chronic lung disease
dextrocardia
digitalis toxicity
hypertrophic cardiomyopathy
hypothermia
intracranial hemorrhage
magnesium imbalance
myocardial ischemia-infarct
localization of mi
anterior mi
inferior mi
lateral mi
posterior mi
right ventricular mi
paced rhythm
pacing modes
asynchronous pacing
single-chamber pacing
dual-chamber pacing
pericardial disease
potassium imbalance
pulmonary embolism
shock rhythm
mechanism
⇲
block
ectopy
premature
escape
tachycardia-induced ectopy
reentry
afterdepolarization
sinus
⇲
sinus node dysfunction
sinus tachycardia
atrial
⇲
premature atrial beat
atrial escape beat
atrial tachycardia
atrial flutter
atrial fibrillation
junctional
⇲
av node dysfunction
premature junctional beat
junctional escape beat
junctional tachycardia
avrt
avnrt
ventricular
⇲
bundle branch block
fascicular block
premature ventricular beat
ventricular escape beat
ventricular tachycardia
VT vs SVT
idiopathic VT
polymorphic VT
ventricular fibrillation
inherited
⇲
brugada
cpvt
early repolarization
lown-ganong-levine
long qt
short qt
wolff-parkinson-white
algorithms
⇲
arrhythmia
tachyarrhythmia
bradyarrhythmia
md doodle home
diagnosis & management
lab
cardiology
index
ST SEGMENTS
T waves ⇢
⇠ qrs complexes
Are they elevated ?
yes
ST segment is leveled off baseline
(e.g.
STEMI
,
acute pericarditis
,
bundle branch block
)
no
ST segment is at baseline
ST segment is not elevated, but rather shortened. Here, J-point is elevated
(e.g.
early repolarization
)
Here, J waves (Osborn waves) are seen
(e.g.
hypothermia
,
hypercalcemia
)
Are they depressed ?
yes
ST segment is on a level below baseline
(e.g.
NSTEMI
,
ventricular hypertrophy
,
hypokalemia
,
digitalis toxicity
, stress-induced cardiomyopathy)
no
ST segment is at baseline
t waves ⇢
⇠ qrs complexes
related topics
myocardial ischemia
hypertrophy
pericardial disease
ecg home page
bundle branch block
potassium imbalance
specific diagnoses