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LAST MINUTE REVISION CARDIAC PHYSIOLOGY…, PHASES OF A CARDIAC ELECTRICAL CYCLE.., Phase 0…rapid depolarization due to influx of, sodium ion., Phase I.. Initial repolarization influx of chloride ion., Phase II.. Plateau.. Balance of k+ outflow and CA2+, inflow., Phase III.. Late repolarization containing k+ efflux., Phase IV.. Resting phase, ECG correlation with phase of electrical cycle., Phase 0 and 1…QRS complex, Phase II.. ST segment, Phase III.. T wave, Rate of normal coronary blood flow…, 70 to 90 ml/100 gm of myocardium /min, EJECTION FRACTION, Ratio of stroke volume to end diastolic volume, [(EDV-ESV) /EDV] ×100
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Normal….67+/-8%, NORMAL PULMONARY BLOOD FLOW IN FETUS, 1st trimester…. 0%, 2nd trimester…. 3%, 3rd trimester…. 10%, , Thanks….