ecg Flashcards
label parts
label parts
label parts
label parts
the normal rhythm starts where and what is this called
sinoatrial node
NSR normal sinus rhythm
one small small square represents
0.04s
40ms
one large square represents
0.2s
200ms
5 large squares equals
1 sec
1000 ms
the normal PR interval should be what
120-200
3-5 squares
the normal qrs is normal
120ms
3 small squares
the components of the ecg complex
label
the QT interval varies with what
name three
heart rate
electrolyte
some drugs
calibration of the ecg recording should be what
1mv
1cm high
2 large squares
what is a lead
electrical picture of the heart
VR Lead is placed where
and is possitive or negitive
which direction should to point
which part of the heart
square root of squat
lead 1
what view does this give
where on the ecg box
should be positive or neg
1 lateral left
ventricle
lead 2
where in the box
pos or neg
which part of the heart
2 inferior left ventricle
lead 3
pos or neg
where in the box
which part of the heart
3 inferior portion of the left ventricle
aVL
pos or neg
where in the box
which part of the heart
lateral left ventricle
aVF
where in the box
pos or neg
which portion of the heart
inferior portion of the left ventricle
V1
which part of the heart
pos or neg
where in the box
V1 septal
V2
pos or neg
which part of the heart
where in the box
V2 anterio septal
V3
pos or neg
where in the box
which part of the heart
V3 anterio septal
V4
pos or neg
which part of the heart
where in the box
V4 anterior
V5
which part of the heart
pos or neg
where in the box
V5 lateral left ventricle
V6
where in the box
which part of the heart
pos or neg
V6 Lateral left ventricle
avr stand for
Augmented vector
right
left
foot
the cardiac axis 11 -5 oclock
which three leads easily show normal axis
should they be pos or neg
which one should be more pos if axis is normal
1 2 3
positive
lead 2
left axis diviation
what does right axis divation look like
in what leads
a right axis diviation may indicate what
pulmonary embolus
copd
mi
RVH
left posterior fascicular block
a left axis diviation may indicate what
conduction defect
LBBB
paced rhythm
WPW
LVH
Left anterior fascicular block
why is the r wave transition point important
if the ventricle right is in larged the transition will move from its normal v4 v5
v5 v6 this characteristic of chronic lung disease
left axis div LVH
LAD
left ventricle hyperotrophy
left axis diviation
Right axis devation
RAD
RVH
right ventricle hypertrophy
horizontal left div some reasons for LAD
mi in the right side
obestity
pregnant
acites
lbbb
lafb
vertical right div
some reason for rad
mi old or acute
tall thin
emphysema
pulmonary disease
isoelectric
what is it
neutral equal positive negative
isoelectric find on ecg then use the 90 degree then pos
find on ecg
fine tune
neg ant clockwise
pos clockwise
lead placement
the ecg will do most of the work but remember
electrodes to correct limbs
ensure good electrical contract
calibration and speed 25 mm/s 1Mv high two squares 1cm
patient comfortable and relax
how to report an ECG
rhythm regular or not
conduction intervals PR interval 0.12-0.20s QRS 0.08-0.10s
cardiac axis
description of QRS complexes
description of ST segment and T wave s
one P wave per QRS complex 0.12-0.20s 3-5small squres
normal or not
within range
one p wave per QRS more the 0.20s 5 small boxes
what is this
1 st degree block
may be a sign of
CAD
digoxion toxicity
eletrolyte embalances
rheumatic carditis
progressive lengthening of the PR interval
one non conducted P wave
next conducting beat has shorter conducted beat
p wave may be in a distortion of the t wave ( with any other rhythm)
what is this
wenckebach /mobitz type1
PR interval more than 5 small squares 0.20s
1 P wave is not followed by a QRS
what is this rhythm
seconded degree heart block
mobitz type2
P wave rate 90/min
no relationship between QRS complexes
QRS complexes rate 36min
abnormally shaped QRS complexes
Third degree heart block
P wave qrs not linked
RAD
broad QRS complexes
RBBB
complete heart block
it is impotant to recognize LBBB why
best seen in what lead
no further interpretation can be done
V6
w with notch
RBBB can mean what about the patient
which lead best to see
RSR
could be normal
right side of heart
V1
bifascicular block
LAFB
LPFB
left antior fascicular block normal QRS but LAD
Left pos fascicular block normal QRS but RAD
