Final answer:
The 2 most common causes of Pulseless Electrical Activity are hypovolemia, which is a low blood volume condition, and hypoxia, which is an oxygen deficiency in the tissues.
Step-by-step explanation:
The 2 most common causes of Pulseless Electrical Activity (PEA) are hypovolemia and hypoxia. Hypovolemia refers to a low volume of blood circulating in the body, which can result from conditions such as hemorrhage or severe dehydration. This can lead to a rapid or weak pulse, cool and clammy skin, and can ultimately result in PEA if not treated promptly with intravenous fluids and potential vasopressors. Hypoxia, on the other hand, is a condition in which there is a deficiency of oxygen reaching the tissues, leading to altered sodium and potassium levels, and can potentially disrupt the electrical activity of the heart, culminating in PEA. Both conditions can be life-threatening and require immediate medical treatment to restore adequate circulation and oxygenation to the body's tissues.