WebMD Symptom Checker helps you find the most common symptom combinations and medical conditions related to palpitations (fluttering in chest). Click on the combination that matches your symptoms to find the conditions that may cause these problems.
Nerve agents are a class of phosphorus-containing organic chemicals (organophosphates) that disrupt the mechanism by which nerves transfer messages to organs. The disruption is caused by blocking acetylcholinesterase, an enzyme that normally destroys acetylcholine, a neurotransmitter.
VX is a human-made chemical warfare agent classified as a nerve agent that was invented in the United Kingdom in the early 1950s. According to the Council on Foreign Relations (CFR), just a fraction of a drop of VX, absorbed through the skin, can fatally disrupt the nervous system.