Heart anatomy review
anatomy
electrical
system
R L
·
n Atrioventricular (AV) Node
Right Bundle Branch
blood
R
RL
fo
L
·
Pulmonary value
Oxygen rich
Oxygen poor
, 1) interpreting EKG strips
Electrode Placement Notes :
eC-gram refers to procedure refers to machine
i
,
graph
·
Signals are electrochemical
heart from
·
is semi independent the brain
·
AV node is Pacemaker (backup & has a
secondary
delay mechanism to push max blood out
·
lack of 02 loss of function = dying death
·
Atrial hick : allowing ventricle to fill before
contraction
·
W/ leads upward towards lead down is
, means ,
away
· ·
ambulances do 3-lead angiograms use a black dye and needlelcatheter to
·
15 lead wi the back find a block
·
atrial rate : number of P-waves
Ventricular rates number of QRS complexes
·
Reading a signals
· · val
P-wave Produced from SA node
Graph details
·
·
PR interval is & signifies AV node
delay
square-noms
xdomsYamu
~0 120.20
. sec
long
don't always
·
see Q ,
based on
angle moves at spe a
·
Ventricular depolarization , O 12 see of 25 mm/sec
complex represents .
long
·
complex reps ventricular repolarization
·
five step approach :
1/ heart rate (full complex /min) I
6 Second method
2) heart
rhythm (regular vs irregular(
3) P-wave (Presence regularity , , amount per QRS,
shape, similarity to one another
4) PR interval (length : is it 0 .
12 or = 0 20
.
& consistent),
o o
5) QRS complex /is it
* may not have a
= or < 0 12s
. and similarity
Q
anatomy
electrical
system
R L
·
n Atrioventricular (AV) Node
Right Bundle Branch
blood
R
RL
fo
L
·
Pulmonary value
Oxygen rich
Oxygen poor
, 1) interpreting EKG strips
Electrode Placement Notes :
eC-gram refers to procedure refers to machine
i
,
graph
·
Signals are electrochemical
heart from
·
is semi independent the brain
·
AV node is Pacemaker (backup & has a
secondary
delay mechanism to push max blood out
·
lack of 02 loss of function = dying death
·
Atrial hick : allowing ventricle to fill before
contraction
·
W/ leads upward towards lead down is
, means ,
away
· ·
ambulances do 3-lead angiograms use a black dye and needlelcatheter to
·
15 lead wi the back find a block
·
atrial rate : number of P-waves
Ventricular rates number of QRS complexes
·
Reading a signals
· · val
P-wave Produced from SA node
Graph details
·
·
PR interval is & signifies AV node
delay
square-noms
xdomsYamu
~0 120.20
. sec
long
don't always
·
see Q ,
based on
angle moves at spe a
·
Ventricular depolarization , O 12 see of 25 mm/sec
complex represents .
long
·
complex reps ventricular repolarization
·
five step approach :
1/ heart rate (full complex /min) I
6 Second method
2) heart
rhythm (regular vs irregular(
3) P-wave (Presence regularity , , amount per QRS,
shape, similarity to one another
4) PR interval (length : is it 0 .
12 or = 0 20
.
& consistent),
o o
5) QRS complex /is it
* may not have a
= or < 0 12s
. and similarity
Q
