When entering the room of a client in active labor to answer the call light, the nurse sees that she is ashen gray, dyspneic, and clutching her chest. what should the nurse do immediately after pressing the emergency light in the client's room?

These are signs of amniotic fluid embolism, a rare emergency that can occur during the very last stages of labour. This is caused by the circulation of amniotic fluid in the blood stream of the pregnant woman. The nurse should administer oxygen using a facemask, in order to increase the oxygen intake of the woman.