Regarding hemodynamic changes in pregnancy, all of the following are true except :-

Cardiac Output : Stas increasing by as early as 5th week increases by 30% (6litres/Min) reaches to peak at 32nd -34th week antenatally Even higher during labour and its maximum immediate post paum Hea Sounds in Pregnancy: - Exaggerated splitting of the first hea sound and increased loudness of both components A loud easily heard third sound >95% develop systolic murmur which disappears after delivery. 20% have a transient diastolic murmur. >10% develop continuous murmur due to increase mammary blood flow. Systemic Pressure changes; Early or mid pregnancy fall in BP late pregnancy rise in BP Hea rate increases (10-20%). Stroke volume increases (10%). Mean aerial blood pressure decreases (10%). Peripheral resistance decreases (35%)