JACKLINE
Kaiser EKG Test With Questions And 100% ALL SURE ANSWERS
Terms in this set (67)
- inside of cell becomes positive, outside negative
- contraction
depolarization
- na+ channel opens
- ELECTRICAL
movement of cells = inside is negative again
repolarization - na+ channels close, k+ channels open
- MECHANICAL
p wave - (p) atrial depolarization
qrs wave - (qrs) ventricular depolarization
t wave - (t) ventricular repolarization
refractory period per of time where cardiac cells cannot respond to stimulus
absolute refractory period beginning of qrs to peak of t wave
Kaiser EKG Test
1/14
, 10/23/24, 1:40 PM
- cardiac cells have repolarized enough to respond to strong stimulus
relative refractory (vulnerable per of - during this per a strong stimulus may overtake the pacemaker of the heart
repolarization) - ex. PVC during vulnerable period may turn into vtach or torsades
- prolonged QT interval inc possibility
causes of prolonged qt intervals haldol, bradycardia, hypokalemia
automaticity ability of pacemaker cells to initiate electrical impulse
excitability ability of muscle cells to respond to outside stimulus
conductivity ability to recieve electrical stimulus and conduct impulse to adjacent cells
contraction cardiac cells shorten = muscular contraction in response to electrical stimulus
- primary pacemaker of heart
sa node
- 60-90 bpm
delay = atrial contraction + ventricular filling
av node
- 40-60 bpm
ability to self initiate electrical activity
bundle of his
- 40-60 bpm
network of fibers that carry electrical impulse to ventricular muscle cells
purkinje fibers
- 20-40 bpm
NSR NSR 60-100
Brady Brady 40-60
Tachy Tachy >100
SVT SVT >150
Junctional Junctional 40-60
Ventricular rhythm Ventricular rhythm 20 - 40
0.12-0.20
PR interval
beginning of p to beginning of qrs
< 0.12
qrs interval
beginning of q to end of s
beginning of q to end of t
qt interval - heart rate dependent
is rhythm regular orKaiser
irregular EKG Test measure interval between R waves
2/14
Kaiser EKG Test With Questions And 100% ALL SURE ANSWERS
Terms in this set (67)
- inside of cell becomes positive, outside negative
- contraction
depolarization
- na+ channel opens
- ELECTRICAL
movement of cells = inside is negative again
repolarization - na+ channels close, k+ channels open
- MECHANICAL
p wave - (p) atrial depolarization
qrs wave - (qrs) ventricular depolarization
t wave - (t) ventricular repolarization
refractory period per of time where cardiac cells cannot respond to stimulus
absolute refractory period beginning of qrs to peak of t wave
Kaiser EKG Test
1/14
, 10/23/24, 1:40 PM
- cardiac cells have repolarized enough to respond to strong stimulus
relative refractory (vulnerable per of - during this per a strong stimulus may overtake the pacemaker of the heart
repolarization) - ex. PVC during vulnerable period may turn into vtach or torsades
- prolonged QT interval inc possibility
causes of prolonged qt intervals haldol, bradycardia, hypokalemia
automaticity ability of pacemaker cells to initiate electrical impulse
excitability ability of muscle cells to respond to outside stimulus
conductivity ability to recieve electrical stimulus and conduct impulse to adjacent cells
contraction cardiac cells shorten = muscular contraction in response to electrical stimulus
- primary pacemaker of heart
sa node
- 60-90 bpm
delay = atrial contraction + ventricular filling
av node
- 40-60 bpm
ability to self initiate electrical activity
bundle of his
- 40-60 bpm
network of fibers that carry electrical impulse to ventricular muscle cells
purkinje fibers
- 20-40 bpm
NSR NSR 60-100
Brady Brady 40-60
Tachy Tachy >100
SVT SVT >150
Junctional Junctional 40-60
Ventricular rhythm Ventricular rhythm 20 - 40
0.12-0.20
PR interval
beginning of p to beginning of qrs
< 0.12
qrs interval
beginning of q to end of s
beginning of q to end of t
qt interval - heart rate dependent
is rhythm regular orKaiser
irregular EKG Test measure interval between R waves
2/14
