As blood volume is lost after injury, blood is shunted away from the uterus first. A much greater degree of blood loss is required to produce compensatory tachycardia. Cardiac output and heart rate increase in later pregnancy. The heart rate will be about 20 beats per minute above the patient's baseline. Blood pressure usually decreases about 10 mm Hg, but rises to normal toward the end of pregnancy.
Sedimentation rate is elevated as well.
Although clotting studies remain normal, levels of coagulation factors and fibrinogen increase. Back to Index. The well-being of the baby is entirely dependent on the welfare of the mother. Attention must therefore be directed immediately to the ABC stabilization of the pregnant victim. Good oxygenation and provision of adequate circulatory volume are critical.