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. |
| Answer |