A Pregnant Client Expresses Concern That She Will Develop Varicose

A pregnant client expresses concern that she will develop varicose veins toward the end of her pregnancy.The nurse should recognize that varicose veins are the result of:

A) a genetic defect in the valves of lymph ducts in the lower extremities
B) compression of the abdominal veins by the progressively enlarging uterus
C) increased cardiac volume that normally occurs in the last half of the pregnancy
D) increased fluid volume resulting from the placental filtering of maturing fetal systems