What should be done for a 28-week pregnant patient in cardiac arrest?

In the context of a 28-week pregnant patient in cardiac arrest, performing CPR with left uterine displacement is the appropriate action to take. This technique is crucial because as the pregnancy progresses, the growing uterus can press on major blood vessels like the inferior vena cava, which can impede blood flow back to the heart and ultimately reduce the effectiveness of CPR.

By displacing the uterus to the left side during compressions, you help alleviate this pressure, allowing for improved venous return and better perfusion to vital organs. This positioning can significantly enhance the chances of a successful resuscitation for both the mother and the fetus.

The other options do not align with current recommendations for managing cardiac arrest in a pregnant patient. For example, AED use is not contraindicated, and placing the patient on her right side could exacerbate compression of the inferior vena cava. Additionally, while a resuscitative cesarean delivery may be indicated if the patient does not achieve ROSC in a timely manner, it is not the immediate step to take during the CPR process itself.