mnemonic for AMS
A-E-I-O-U TIPS
Alcohol, epilepsy, insulin, overdose, uremia, trauma, infection, psych stroke
Causes of U waves
hypokalemia (by far the most common), hypomagnesemia, acute MI (flipped U waves), intracranial disturbance (such as seizure)
3 conditions that can be p-ANCA +