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?.
The most common Spanish verb meaning to want is querer, which can be used in a wide variety of situations. Even though it can be used in a variety of mundane situations, the verb also can mean to love (te quiero is a common way of saying I love you).