Kaiser EKG Test With Correct Answers | Latest Updated 2025/2026 Graded A+.

Kaiser EKG Test With Correct Answers |
Latest Updated 2025/2026 Graded A+.
repolarization - answer-movement of cells = inside is negative againb b b b b b b b b b


- na+ channels close, k+ channels open
b b b b b b b


-
bMECHANICAL

p wave qrs wave t wave - answer-- (p) atrial
b b b b b b b b


depolarization
b b


- (qrs) ventricular depolarization
b b b b


- (t) ventricular repolarization
b b b




refractory period - answer-per of time where cardiac cells cannot respond to stimulus
b b b b b b b b b b b b




absolute refractory period - answer-beginning of qrs to peak of t wave
b b b b b b b b b b b




depolarization - answer-- inside of cell becomes positive, outside negative
b b b b b b b b b b


- contraction
b


- na+ channel opens
b b b b


- ELECTRICAL
b




relative refractory (vulnerable per of repolarization) - answer-- cardiac cells have
b b b b b b b b b b


brepolarized enough to respond to strong stimulus b b b b b b b


- during this per a strong stimulus may overtake the pacemaker of the heart
b b b b b b b b b b b b b b


- ex. PVC during vulnerable period may turn into vtach or torsades
b b b b b b b b b b b b


- prolonged QT interval inc possibility
b b b b b




contraction - answer-cardiac cells shorten = muscular contraction in response to
b b b b b b b b b b


electrical stimulus
b b




sa node - answer-- primary pacemaker of heart
b b b b b b b b


- 60-90 bpm
b b




av node - answer-delay = atrial contraction + ventricular filling
b b b b b b b b b b


- 40-60 bpm
b b




bundle of his - answer-ability to self initiate electrical activity
b b b b b b b b b b

, - 40-60 bpm
b b




purkinje fibers - answer-network of fibers that carry electrical impulse to ventricular
b b b b b b b b b b b

bmuscle cells b b

- 20-40 bpm
b b




NSR b

Brady b

Tach y
SVT b

Junctional b

Ventricular rhythm - answer-NSR 60-100 b b b b

Brady 40-60 b

Tachy >100 b

SVT >150 b

Junctional 40-60 b

Ventricular rhythm 20 - 40 b b b b




PR interval - answer-0.12-0.20
b b b


beginning of p to beginning of qrs b b b b b b


causes of prolonged qt intervals - answer-haldol, bradycardia, hypokalemia
b b b b b b b b




automaticity - answer-ability of pacemaker cells to initiate electrical impulse
b b b b b b b b b




excitability - answer-ability of muscle cells to respond to outside stimulus
b b b b b b b b b b




conductivity - answer-ability to recieve electrical stimulus and conduct impulse to
b b b b b b b b b b


adjacent cells
b b




qrs interval - answer-< 0.12
b b b b


beginning of q to end of s b b b b b b




qt interval - answer-beginning of q to end of t
b b b b b b b b b b


- heart rate dependen t
b b b is rhythm regular or irregular - answer-
b b b b b b


measure interval between R waves
b b b b




ventricular rate - answer-- count # of qrs complexes
b b b b b b b b




atrial rate - answer-- count # of p waves
b b b b b b b b




causes of bradycardia - answer-- vagal
b b b b b b


- dig, beta blockers
b b b b


- compensatory response in acute MI
b b b b b b