Final answer:
In the treatment of cardiac arrest in a pregnant patient, a second provider may handle tasks such as monitoring vital signs, administering AED shocks, and assisting with advanced airway management. They might also alternate with the primary provider in delivering chest compressions and adjust the patient's position to ensure the efficacy of CPR.
Step-by-step explanation:
If a second provider were available while assisting in the treatment of cardiac arrest in a pregnant patient, their role may include various support measures in addition to the primary provider’s efforts. These could involve providing alternate chest compressions, monitoring the patient’s vital signs, preparing and using an automated external defibrillator (AED), and possibly assisting with advanced airway management if trained to do so. In the event of a cardiac arrest, the primary objective is to circulate blood to vital organs, especially the brain, to prevent irreversible damage. CPR, or cardiopulmonary resuscitation, is performed by applying pressure to the sternum between the T4 and T9 vertebrae at a rate of 100 compressions per minute, to the beat of 'Staying Alive' by the Bee Gees, with chest compressions at least 5 cm deep.
When an AED is available, it should be used following CPR to deliver a shock that may terminate any arrhythmia and help the heart resume its normal rhythm. In a pregnant patient, it's also critical for the second provider to be aware of the modifications in CPR technique and the position of the patient, such as tilting to the left to reduce aortocaval compression by the gravid uterus.