Poisoning. Identify those antidotes that can precipitate withdrawal. Acetaminophen toxicity. Vital signs. Syncope. Interpretation of ECG. Identifying a potential toxin often depends on a good history and physical. Many ingestions have a toxidrome. Blood tests should be used strategically. There are very few antidotes. Massive GI Bleeding. Choosing IV Fluids. Intracranial pressure (ICP). Fluid orders for children. Hypovolemia / head injury. Acute coronary syndrome.