whether your daughter was overdosed or no. The drug has a very quick half life and levle of the medicine in her body will depend on the time her blood was sampled.
"檢查結果是血液中的tylonal在正常範圍" does not mean anyting quantitatively. What is it exactly (with quantutative number and assay method).
Please check the manual/instructions for the medicine and compare with the time period she took the medicine and find her "calculated plasma drug level".
If the calculated concentration is well higher than what was reported. You could file the case, at least a complaint to the hospital.