问题
单项选择题
在脑神经受体显像中，应具备的条件方面，下面哪一个是错。（）
A.脑内的分布应与受体的部位相一致
B.高浓度拮抗剂应阻滞其结合
C.受体结合位点很多，药物浓度低时，不易饱和
D.受体结合位点很少，药物浓度低时易饱和
E.显像剂能特异地结合在神经受体上
答案
参考答案：C
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在脑神经受体显像中，应具备的条件方面，下面哪一个是错。（）
A.脑内的分布应与受体的部位相一致
B.高浓度拮抗剂应阻滞其结合
C.受体结合位点很多，药物浓度低时，不易饱和
D.受体结合位点很少，药物浓度低时易饱和
E.显像剂能特异地结合在神经受体上
参考答案：C
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