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KAISER EKG TEST STUDY GUIDE QUESTIONS WITH CORRECT VERIFIED ANSWERS A+ GRADED $12.49   Add to cart

Exam (elaborations)

KAISER EKG TEST STUDY GUIDE QUESTIONS WITH CORRECT VERIFIED ANSWERS A+ GRADED

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  • KAISER EKG

depolarization - ANS - inside of cell becomes positive, outside negative - contraction - na+ channel opens - ELECTRICAL repolarization - ANS movement of cells = inside is negative again - na+ channels close, k+ channels open - MECHANICAL p wave qrs wave t wave - ANS - (p) at...

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  • October 23, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • KAISER EKG
  • KAISER EKG
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KAISER EKG TEST
STUDY GUIDE




K
C
QUESTIONS WITH
LO
CORRECT VERIFIED
YC
ANSWERS A+ GRADED
D
U
ST

,depolarization - ANS - inside of cell becomes positive, outside negative
- contraction
- na+ channel opens
- ELECTRICAL

repolarization - ANS movement of cells = inside is negative again
- na+ channels close, k+ channels open
- MECHANICAL

p wave




K
qrs wave
t wave - ANS - (p) atrial depolarization




C
- (qrs) ventricular depolarization
- (t) ventricular repolarization




LO
refractory period - ANS per of time where cardiac cells cannot respond to stimulus

absolute refractory period - ANS beginning of qrs to peak of t wave

relative refractory (vulnerable per of repolarization) - ANS - cardiac cells have
YC
repolarized enough to respond to strong stimulus
- during this per a strong stimulus may overtake the pacemaker of the heart
- ex. PVC during vulnerable period may turn into vtach or torsades
- prolonged QT interval inc possibility
D

causes of prolonged qt intervals - ANS haldol, bradycardia, hypokalemia
U


automaticity - ANS ability of pacemaker cells to initiate electrical impulse

excitability - ANS ability of muscle cells to respond to outside stimulus
ST




conductivity - ANS ability to recieve electrical stimulus and conduct impulse to adjacent
cells

contraction - ANS cardiac cells shorten = muscular contraction in response to electrical
stimulus

sa node - ANS - primary pacemaker of heart
- 60-90 bpm

, av node - ANS delay = atrial contraction + ventricular filling
- 40-60 bpm

bundle of his - ANS ability to self initiate electrical activity
- 40-60 bpm

purkinje fibers - ANS network of fibers that carry electrical impulse to ventricular
muscle cells
- 20-40 bpm




K
NSR
Brady




C
Tachy
SVT
Junctional




LO
Ventricular rhythm - ANS NSR 60-100
Brady 40-60
Tachy >100
SVT >150
Junctional 40-60
YC
Ventricular rhythm 20 - 40

PR interval - ANS 0.12-0.20
beginning of p to beginning of qrs
D

qrs interval - ANS < 0.12
beginning of q to end of s
U


qt interval - ANS beginning of q to end of t
- heart rate dependent
ST




is rhythm regular or irregular - ANS measure 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

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