When dealing with a pregnant patient in cardiac arrest, what adjustment may be necessary for chest compressions?

In cases of cardiac arrest in a pregnant patient, it is important to consider the physiological changes that occur during pregnancy, particularly regarding the pressure the uterus can exert on major blood vessels. One significant concern is the compression of the inferior vena cava (IVC) when the patient is in a supine position. This compression can impede venous return to the heart, decreasing blood flow and making resuscitation less effective.

Displacing the uterus manually helps alleviate this pressure on the IVC, facilitating better circulation during chest compressions. This maneuver can be achieved by tilting the patient to the left side or using manual displacement while performing compressions, which improves hemodynamics and increases the chances of a successful resuscitation.

In contrast, other options do not effectively address the specific anatomical challenges posed by the pregnant patient. Compressing lower on the sternum or changing the compression rhythm does not target the underlying issue of IVC compression. Removing the uterus is not a viable or safe option, both ethically and practically in an emergency setting.