abnormalities p wave QRS T Waves Flashcards
anything that causes the right atrium to become hypertrophy such as what
and cause the p wave to do what
causes peaked wave
anything that causes left hypertrophy is usually due to
what does it do to the p wave
mitral stenosis
abnormalities of QRS
what are the four normal ones
no more than 3 squares wide 120ms
right ventricle lead V1 the S wave is greater than the R wave
in the Left ventricle lead v5\v6 r wave less than 25mm
left ventricle leads may show Q waves less than 1mm across 2mm deep
right hypertropy is best seen in what lead
right ventricle lead V1
pulmonary embolism
s1 q3 t3 patten
left ventricular hypertrophy
SR
normal axis
tall R waves v5 6
invert t waves 1 vl v5 6
Q waves origin
left ventricular small septal depolarization from left to right less than 1 small square and less than 2mm depth
q waves greater than one small square in width 40ms
2mm deep
indicate what
mi
or old mi
st segment
should be
isoelectric same level as the t and the next p wave
but it may be elevated or depressed
ST elevation what is happening
new or old
new mi infarction
will show which part of the heart
pericarditis show in most leads
st depression indicates what
ischaemia
inversion of T waves is normal
in what leads
VR V1 V2 sometimes in v3 black people
nstemi
which part of the ecg changes
flip ts
digoxin shows what on ecg
