 
 <translate> Quoc: The first point along the graph where a response above zero (or above the control response) is reached is usually referred to as a threshold-dose. For most beneficial or recreational drugs, the desired effects are found at doses slightly greater than the threshold dose. At higher doses, undesired side effects appear and grow stronger as the dose increases. The more potent a particular substance is, the steeper this curve will be. In quantitative situations, the Y-axis often is designated by percentages, which refer to the percentage of exposed individuals registering a standard response (which may be death, as in LD). Such a curve is referred to as a quantal dose-response curve, distinguishing it from a graded dose-response curve, where response is continuous (either measured, or by judgment).

The threshold on a dose-response curve is the?
HW Chung: OK, some thoughts: <ibo> Quoc: A na-akpọkarị ebe mbụ n'akụkụ eserese ebe a na-enweta nzaghachi karịrị efu (ma ọ bụ karịa nzaghachi njikwa). N'ihe ka n'ọnụ ọgụgụ n'ọgwụ ndị bara uru ma ọ bụ ndị e ji atụrụ ndụ, a na-ahụ mmetụta ndị a na-achọ na ha n'ọ̀tụ̀tụ̀ dịtụ elu karịa nke a na-atụ anya ya. Mgbe e ji ya mee ihe n"ọ̀tụ̀tụ̀ dị elu, mmetụta ndị na-adịghị mma na-apụta ma na-esiwanye ike ka ọgwụ ahụ na-amụba. Ka ihe ahụ na-akpa ike karị, otú ahụ ka ọ ga-esi dịkwuo nkọ. N'ọnọdụ dị iche iche, a na-ejikarị pasent, nke na-ezo aka na pasent nke ndị ekpughere na-edebanye aha nzaghachi ọkọlọtọ (nke nwere ike ịnwụ, dị ka LD). A na-akpọ usoro dị otú ahụ dị ka usoro ọnụọgụ-azaghachi, na-eme ka ọ dị iche na usoro nhazi usoro, ebe nzaghachi na-aga n'ihu (ma ọ bụ tụọ, ma ọ bụ site na ikpe).  Ọnụ ụzọ dị n'elu usoro ọgwụgwọ-mmetụta bụ? HW Chung: OK, ụfọdụ echiche: 