Pea can refer to different things depending on the context. Here are some possible meanings:

• Palmitoylethanolamide (PEA): This is a chemical made from fat that is found naturally in foods such as egg yolks and peanuts, and in the human body. PEA can bind to cells in the body and reduce pain and swelling. It is used for different types of pain, fibromyalgia, osteoarthritis, multiple sclerosis (MS), carpal tunnel syndrome, autism, and many other conditions, but there is no good scientific evidence to support many of these uses. PEA is also used in creams, lotions, and eye drops.

• Pulseless Electrical Activity (PEA): This is a type of irregular heart rhythm that occurs when the electrical activity in the heart is too weak to make the heart beat. PEA can take two different forms: one where the heart still has some detectable electrical activity, and another where there’s no electrical activity to detect. PEA is always caused by a profound cardiovascular insult, such as severe prolonged hypoxia or acidosis, extreme hypovolemia, or flow-restricting pulmonary embolus. Without medical attention, PEA and cardiac arrest are deadly in minutes.

In summary, pea can refer to a chemical compound with pain-relieving and anti-inflammatory effects, or to a type of irregular heart rhythm that can be life-threatening.