How long would it take for 16 oz of antifreeze to kill a teenager?

The lethality of antifreeze, primarily composed of ethylene glycol, varies based on numerous factors, including the teenager's weight, overall health, and how quickly they receive medical treatment. As little as 2 to 4 ounces can be fatal if not treated promptly, but symptoms can take hours to manifest. Immediate medical attention is crucial, as early intervention can significantly reduce the risk of severe outcomes or death.