P wave
atrial depolarization
QRS complex
ventricle depolarization
T wave
ventricular repolarization
U wave
late ventricular repolarization
PR interval
time it takes for impulse to move through atria to the AV junction
PR segment
pause at the AV node
QT interval
complete ventricle cycle depolarization through repolarization
1 small box horizontally
0.04 seconds or 40 milliseconds
1 large box horizontally
0.20 seconds or 200 milliseconds
1 small box vertically
0.1 millivolts
2 large boxes vertically
\n 1 millivolt
always has a p wave associated with qrs complex
sinus rhythm
sinus rhythm greater than 100
tachycardia
sinus rhythm less than 60
bradycardia
junctional rhythm greater than 60
accelerated junctional
QRS complex greater than 0.12 sec
ventricular rhythmn
missing or inverted pwaves with QRS less than 0.12 sec
junctional rhythm
pacer spike occurs before p wave
atrial pacemaker
pacer spike occurs before qrs wave
ventricular pacemaker
junctional rhythm less than 40
junctional bradycardia
Einthoven's triangle leads
I II III
Augmented Limb leads
aVL aVR aVF
leads that view Anterior heart
V1 V2 V3 V4
leads that view inferior heart
II III aVF
leads that view left lateral high
I aVL
leads that view left lateral low
V5 V6
ST depression
cardiac ischemia
ST elevation
myocardial infarction or injury
most common site to take adult pulse
radial
most common site to take infant pulse
brachial
normal adult heart rate
\n 60-100
normal infant heart rate
100-160
extreme sweating
\n diaphoresis
normal adult respiratory rate
12-20
fainting
syncope
blue tinged skin
cyanosis
outpatient cardiac test done over time
holter monitor
in patient cardiac test done over time
telemetry
placement for V1
right 4th intercostal space
placement for V2
left 4th intercostal space
placement for V3
left 5th intercostal space between V2 and V4
placement for V4
left 5th ICS midclavicular line
placement for V5
eft 5th ICS anterior axillary line
placement for V6
left 5th ICS midaxillary line
placement for V8
left 5th ICS midscapulary line
placement for RV4
right 5th ICS midclavicular line
ground lead for limb leads
right leg
law that protects privacy
HIPAA
placement of the white lead wire
right arm
placement of the black lead wire
left arm