Final answer:
The no shock advised message indicates that the woman is not in ventricular fibrillation and does not need a shock from the AED. It does not mean that she has a pulse and does not need CPR.
Step-by-step explanation:
The no shock advised message indicates that the woman in cardiac arrest is not in ventricular fibrillation.
Ventricular fibrillation is a serious condition where the heart beats in a fast and irregular manner, preventing it from pumping blood effectively. In this case, a shock from the AED would be needed to restore a normal heart rhythm. However, since the AED is advising against a shock, it means that the woman's heart is not in ventricular fibrillation.
This message does not necessarily mean that she has a pulse and does not need CPR, as the AED cannot determine pulse presence. It is still important to assess the woman's pulse and provide CPR if necessary.