What is the significance of positioning during CPR on a pregnant woman?

Positioning during CPR on a pregnant woman is crucial because it ensures optimal blood flow and venous return. When a woman is in the later stages of pregnancy, the growing uterus can exert pressure on major blood vessels such as the inferior vena cava, especially when she is lying flat on her back. This pressure can impede venous return to the heart, which decreases cardiac output and can impact the effectiveness of CPR.

By positioning the pregnant woman appropriately, typically by tilting her to the left side or using something like a wedge to displace the uterus, you can alleviate this pressure. This positioning improves blood circulation, allowing CPR to be more effective in delivering oxygenated blood to vital organs, particularly the heart and brain. In emergency situations, this becomes crucial for the survival of both the mother and the fetus, as optimal blood flow can influence the outcomes of resuscitation efforts.

Thus, the correct answer highlights the importance of proper positioning to maintain hemodynamic stability during the resuscitation of a pregnant patient.