ekg hypertrophy and myocardial infart Flashcards
(21 cards)
if when looking at v1 and v2, the initial portion of the diphasic P wave is larger then we can suspect ______ enlargement
right atrial
the height in the p wave in lead II exceeds ____ mm, should suspect ____
2.5 mm
right atrial enlargement
v1/v2 is suggestive of right atrial enlargement
left atrial enlargement ekg findings
notch in middle of p waave and is prolonged , in leads II, III, avF
V1 terminal portion of p wave is large and wide
right ventricualr hypertrophy is seen on ekg with a large __ wave ____ than 7mm on v1
R, taller
left ventricular hypertrophy has a large __ wave in V1 and a large __ wave in v5
S
R
left ventricular hypertrophy can be calculated how?
v1= mm of s in v1+
v5= mm of R in v5
if more than 35 mm there is left ventricular hypertrophy
other ekg finding in left ventricular hypertrophy include
t wave inversions, v5/v6
ventricular strain is characterized by __ wave inversion and depression of __
Right ventricular strain can be seen in ____
Left ventricular strain seen in leads ____
T
ST
V1- V3
V4-6
a myocardial infarction results from a complete ____ of a coronary artery. the infarcted area of the myocardium becomes necrotic
occlusion
the ____ ventricle is the first to suffer from an obstructed coronary because it ______ blood supply.
left
uses the most
an occluded coronary artery results in an area of the heart without blood, and suffers ___
necrosis
on ekg ischemia is characterized by inverted __ waves
t
significant Q waves, indicate
prior MI and or acute MI and show the location of MI
T wave inversions >1mm in greater than 2 contiguous leads is indicative of _____
ischemia
initial part of ST, end of Qrs to beginning of St is what
j point
stable angina presnts how
during exertion, relieved at rest. like climbing uo a flight of stairs
ischemia
st and t wave inversion criteria
st= downsloping/ horizontal to baseline greater than 0.5mm that occurs 0.8 seconds after j point
first draw isoelectric line from end of t wave to beginning of p wave.
t wave inversions >1 mm in greater than 2 leads
anterior leads, v1, v2, v3, v4 indicates the infarct area is due to what artery
left anterior descending
in looking at ekg, I note ST elevations in leads v5, v6, I and Avl this indicates a blockage from which artery
lateral
left circumflex artery
if st segment depression and ST elevation in avr is present can indicate what?
multi vessel coronary
artery stenosis
highest risk
in looking at the ekg, I note ST elevations in leads II, III, and avf, this bindicates blockage is from what artery?
inferior leads
right coronary artery
