<prompt> Maximum cardiac output in pregnancy is at:20 weeks24 weeks26 weeks28 weeks  <response>: Ans. is d, i.e. 28 weeksRef. William 24e, p 59The following graph of Williams shows cardiac output during pregnancy and labor.As is clear from the graph cardiac output is maximum at 28-32 weeks of gestation.Note: At term cardiac output is less in comparison to 28-32 weeks. 