26. Physiological changes in pregnancy.
|a.||blood volume increases by about 10% in pregnancy.|
|b.||red cell mass and plasma volume increase by similar amounts.|
|c.||cardiac output increases from ~4.5 to ~6 litres per minute.|
|d.||blood pressure is a function of cardiac output and peripheral resistance, so peripheral resistance must fall in pregnancy.|
|e.||the pulse rate rises in normal pregnancy.|
|f.||the glomerular filtration rate increases in pregnancy.|
|g.||the white cell count rises in normal pregnancy.|