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### 24 Cards in this Set

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 Mitral Stenosis Pressure Half time Normal 30-60 msec Mitral Stenosis Pressure Half time Gray Area 60-90 msec Mitral Stenosis Pressure Half time Mild 90-150 msec Mitral Stenosis Pressure Half time Moderate 150-219 msec Mitral Stenosis Pressure Half time Severe > equal to 220 msec Mitral Valve Area Normal 4 to 6 cm square Mitral Valve Area Mild 1.5 to 2.5 cm2 Mitral Valve Area Moderate 1.0 to 1.5 cm2 Mitral Valve Area Severe < 1.0 cm2 Mitral Mean pressure gradient Mild 10 mmHg MVA formula Mitral Valve area 220÷P1/2T Aortic Valve Area is determined the contuity formula which is 0.785(LVOT diameter)2Squared(V1)÷ V2 V1= LVOT with PW V2= AV with CW Aortic Stenosis Maximum Inst Pressure Gradient Mild 16 to 36 mmHg Aortic Stenosis Maximum Inst Pressure Gradient Moderate 36 to 50 mmHg Aortic Stenosis Maximum Inst Pressure Gradient Moderately Severe 50 to 64 mmHg Aortic Stenosis Maximum Inst Pressure Gradient Severe > 64 mmHg MVA formula Mitral Valve area 220÷P1/2T Aortic Valve Area is determined the contuity formula which is 0.785(LVOT diameter)2Squared(V1)÷ V2 V1= LVOT with PW V2= AV with CW