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Kaiser EKG Test questions and answers graded A+ 2024/2025
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Kaiser EKG Test questions and answers graded A+ 2024/2025
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Kaiser EKG TestDepolarization - ANS- internal of cellular will become fantastic, out of doors bad
- contraction
- na+ channel opens
- ELECTRICAL
repolarization - ANSmovement of cells = interior is negative once more
- na+ channels close, k+ channels open
- MECHANICAL
p wave
qrs wave
t wave - ANS- (p) atrial depolarization
- (qrs) ventricular depolarization
- (t) ventricular repolarization
refractory duration - ANSper of time in which cardiac cells cannot respond to stimulus
absolute refractory duration - ANSbeginning of qrs to height of t wave
relative refractory (inclined consistent with of repolarization) - ANS- cardiac cells have
repolarized enough to respond to sturdy stimulus
- at some stage in this in step with a strong stimulus may overtake the pacemaker of the heart
- ex. PVC throughout vulnerable length may additionally develop into vtach or torsades
- prolonged QT c program languageperiod inc opportunity
causes of extended qt periods - ANShaldol, bradycardia, hypokalemia
automaticity - ANSability of pacemaker cells to initiate electric impulse
excitability - ANSability of muscle cells to reply to outside stimulus
conductivity - ANSability to recieve electrical stimulus and behavior impulse to adjacent cells
contraction - ANScardiac cells shorten = muscular contraction in reaction to electric stimulus
sa node - ANS- number one pacemaker of heart
- 60-90 bpm
av node - ANSdelay = atrial contraction + ventricular filling
- forty-60 bpm
, package of his - ANSability to self provoke electric activity
- 40-60 bpm
purkinje fibers - ANSnetwork of fibers that deliver electrical impulse to ventricular muscle cells
- 20-40 bpm
NSR
Brady
Tachy
SVT
Junctional
Ventricular rhythm - ANSNSR 60-a hundred
Brady forty-60
Tachy >a hundred
SVT >150
Junctional forty-60
Ventricular rhythm 20 - 40
PR c language - ANS0.12-zero.20
starting of p to beginning of qrs
qrs interval - ANS< 0.12
beginning of q to end of s
qt interval - ANSbeginning of q to end of t
- heart rate dependent
is rhythm regular or irregular - ANSmeasure interval between R waves
ventricular rate - ANS- count # of qrs complexes
atrial rate - ANS- count # of p waves
causes of bradycardia - ANS- vagal
- dig, beta blockers
- compensatory response in acute MI
- ischemic heart disease
- sick sinus. Synd
- inc intracranial pressure
bradycardia symptoms - ANShypotension, AMS, signs of shock, ischemic chest discomfort, HF
bradycardia tx - ANSatropine
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