The main treatment of heavy metal poisoning is termination of exposure to the metal. Treatment also consists of the use of various chelating agents that cause the toxic (poison) element to bind with the drug and be excreted in the urine.
Que te pasa, literally mean: What Happens to you? With kindness and preoccupation, it means that the other person thinks something bad is happening to you a he/she wants to help you. With aggressive feeling, it means that the other person feel offended by you, and is asking: what is your fucking problem?.
SER or ESTAR. In Spanish there are two verbs that mean to be something. Because there are two different verbs meaning the same thing there are of course different reasons to use each verb. Generally you would use the verb ser to describe things that are permanent and estar for things that are temporary. For example Yo soy alto , I am tall, because that is a permanent thing. Yo estoy triste, I am sad because that is a temporary thing. However it will be worthwhile to look over the various times to use ser and estar.