Maximal level of cardiac output is seen at: September 2009: (A) 22-26 weeks of pregnancy, (B) 26-30 weeks of pregnancy, (C) 30-34 weeks of pregnancy, (D) 34-38 weeks of pregnancy
Answer is C. Ans. C: 30-34 Weeks of Pregnancy The cardiac output stas to increase from 5th week of pregnancy and reaches its peak 40-50% at about 30-34 weeks. Cardiac output increase fuher during labour (+50%) and immediately following delivery (+70%) It returns to pre-pregnancy level by 4 weeks time after labour.