Gynaecology & Obstetrics General 55323414 Area of the mitral valve in severe mitral stenosis during pregnancy A 4-6 cm2 B 1-1.5 cm2 C 1.5-2.5 cm2 D 0.8-1 cm2 High-Yield Explanation Normal area of the mitral valve is 4-6cm2 Severe mitral stenosis is less than 1.5cm2 Critical area is less than 1cm2