Question

During pregnancy, there is an increase in 

A. Maternal blood volume to twice the normal level. 

B. Peripheral resistance. 

C. Venous tone. 

D. Ligament laxity. 

E. Maternal parathormone secretion.

Answer 1

A. False It increases by about a third. 

B. False It decreases (large uterine vessels, vasodilation). 

C. False Venous tone decreases and varicose veins may develop in the legs. 

D. True Due to relaxin, which helps the birth canal to dilate. 

E. True Large amounts of calcium must be mobilized for the fetus.