ecgs Flashcards
what is seen in sinus arrythmia ecg
variable rate (r-r interval)
normal due to breating cycle
what does the atrial fibbrilation ecg look like?
oscillating baseline
irregular rhythm
what is seen on atrial flutter ecg
saw tooth pattern in 2, 3 avf
atrial to ventricular beats 2:1 or 3:1
what is first degree heart block
prolonged pr segment
regular rhythm
what is mobitz 1
gradual prolongation of pr interval until beat skipped
regularly irrecgular
what is mobitz 2
no pr prolongation
some not followed by qrs
3rd degree heart block
both p and qrs regualr
but NO RELEATIONSHIP between the 2
what is seen in ventricular tachycardia on ecg
hidden p waves
regualr rate, fast
shockable
looks regualr - waves look similar
what is seen on ventricular fibrillation ecg
irregualr rate (250 bpm) random squckles
st elevatino on ecg?
p waves folllowed by qrs
regualr rhythm and rate
caused by infarction
what causes st depression
myocardial ischaemia
draw out hte cardaic axis
do it
which leads show right coroncary artery dysfunction
lead 2, 3, avf
which leads show left circumpflex dysfucntion
lead 1, avl, v5, v6
which leads show left anterior descending artery trouble
v1, v2, v3, v4