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acute care

acute care Cardiac Rhythyms

QuestionAnswer
PEA pulseless electrical activity
A cell is in a polarized state when it is at rest
_____ _____ is when channels open allowing the exchange of K, Na and Ca ions to occur action potential
the property of being able to recieve an electrical impulse from a neighboring cell, depolarize and pass onto another cell conductivity
P-waves represent atrial contraction
QRS-waves represent ventricular contraction
T-waves represent ventricular relaxation
Only ____ electrodes on an EKG are active at any one time three
Normal PR interval 0.12 - 0.20
Normal QRS interval less than 0.12
Artifact on an EKG represents patient movements
Electrical response in a patients room causing interference on the the EKG reading 60 cycle interference
rate:70, rhythm: regular, P Wave for every QRS, PR interval .12, QRS interval .06 normal sinus rhythm
treatment for normal sinus rhythm nothing, monitor patient and EKG
Rate:50, rhythm: regular, P Wave for every QRS, QRS: .16 sinus bradycardia
treatment for sinus bradycardia give atropine and consult for a pacemaker
action of atropine blocks vagas nurve and makes sympathetic nerves take control and it is a short actingmed
Rate: 70, rhythm: irregular, SA node rate increases with respirations, all intervals with in normal limits sinus arrhythmia or dysrhythmia
Rate: 160, rhythm: regular, difficult to see P Waves, QRS normal supraventricular tachycardia
treatment for supraventricular tachycardia adenosine, amiodarone, cardioversion
Rate: 70, rhythm: irregular, no P Waves QRS normal A-Fib
Rate: 250, rhythm: regular, F-waves (saw tooth), not P Waves not PR interval QRS regular A-Flutter
P-Wave looks different than the rest, regular rhythm, rate 85, PR 0.16, QRS: 0.08 PAC: pre atrial contraction
Early QRS, wide and bizarre QRS, QRS >.12, no P Wave before the QRS PVC: preventricular contraction
> 6 PVC in one min what do you do call the doctor
rate > 100, rhythm regular, three or more PVC's in a row V-Tac: ventricular tachycardia
treatment for V-Fib shock X3, epinephrine, defib, vasopressin, defib, amiodarone
PR interval > .20 sec first degree heart block
normal to slow rate, irregular rhythm, P Wave not followed by a QRS second degree heart block / Wenchebach
rate slow, regular rhythm, more P Waves that QRS second degree heart block / classical
slow rate, regular P to P, regular QRS to QRS, irregular PR interval Third degree heart block
Created by: dnoyes on 2007-09-05



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