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Cardiology

Precordial Leads V1-V6
P wave Atrial Depolarization
ST segment Ischemia
PR interval .12-.20
Saw-tooth/ "F" A Flutter
QRS duration .04-.10
QRS Complex Ventricular Depolarization
1* AV Block Long PR interval
T waves represent Ventricular Repolarization
Old MI Q waves
Sinus Brady Less than 60
Three or more PVCs in a row VTach
Progressive lengthening of the PR interval and subsequent drop of a QRS 2* AV Block- Wenckebach
Heart normal pacemaker SA Node
Characteristic of PVC's Wide and bizarre QRS
Bipolar Leads Lead1-3
ST segment end of QRS to beginning of T wave
ST depression 1mm deep for .08 sec
Inferior Leads II,III,AvF
Anterior Leads V1-V4
Lateral Leads I,AvL,V5,V6
Right Bundle Branch Block QRS wider than .12 sec and predominately positive in V1
Posterior Infarction Tall R wave in V1-V2
Determine HR for Stress Test 220-age
Submax HR for Stress Test 85% of target HR
Absolute Contraindications For Stress Test Acute infarction, Multifocal, PVCs, Severe Aortic Stenosis
Troponin I peak 12-16 hrs
Troponin I rise about 4-6 hrs
troponin I remain elevated 10 days
Creatine Phosphokinase (CPK) rise within 4-8 hrs
Creatine Phosphokinase (CPK) peak within 24 hrs
Creatine Phosphokinase (CPK) remain elevated 3-4 days
Serum Glutamic Oxaloacetic Transminase (SGOT) rise within Several Hrs
Serum Glutamic Oxaloacetic Transminase (SGOT) peak 1 1/2- 3 days
Serum Glutamic Oxaloacetic Transminase (SGOT) remain elevated 4-5 days
Lactic Dehydrogenase (LDH) rise within 48 hrs
Lactic Dehydrogenase (LDH) peak within 4-7 days
Lactic Dehydrogenase (LDH) remain elevated 2 wks
Treat acute angina Isordil ( Isosorbide Dinitrite)
Leads monitor during Stress Test II,AvF, V5
Created by: SammyT10
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