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Mansour Masjedi
Associate Prof. , Critical Care Consultant
Instructor of AHA , ICU BASIC course & IP of ATLS
Director and Founder of BLS & ACLS courses @ Shiraz University of Medical Sciences
Head of Fars CPR Training Center ( FCTC )
Shiraz Iran - Oct. 2019
CONDUCTION SYSTEM
THERE ARE 5 COMPONENTS
TO A RYTHYM STRIP
P
Q
R
S
T
11/09/18
• No association between P waves and QRS
complexes
3RD DEGREE AV BLOCK
SINUS BRADYCARDIA
VENTRICULAR FIBRILLATION
NORMAL SINUS RHYTHM
ATRIAL FLUTTER
2ND DEGREE AV BLOCK TYPE 1
ASYSTOLE
NORMAL SINUS RHYTHM
ATRIAL FIBRILLATION
• Tracing shows irregularly irregular rhythm
with no P waves
SINUS TACHYCARDIA
VENTRICULAR TACHYCARDIA/
FIBRILLATION
1ST DEGREE AV NODAL BLOCK
• PR interval constant
• >.2 sec
• All impulses conducted
TORSADES DE POINTES
• Occurs secondary to prolonged QT
interval
• Magnesium sulfate
ACLS EKG quiz

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ACLS EKG quiz