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[单选题]
某抗生素具有单室模型特征,表观分布容积为20L,半衰期为3小时,若每6小时静脉注射给药1小时次,每次剂量为1000mg,达到稳态血药浓度(C33)。计算C33max、和C33min达稳态时第3小时的血药浓度(mg/L)。()
A.75.5,45.8,60.6
B. 76.8,30.9,66.7
C. 66.7,16.7,33.3
D. 60.5,20.8,45.6
E. 68.6,20.8,30.9
提问人:网友sonking
发布时间:2022-01-06
A.75.5,45.8,60.6
B. 76.8,30.9,66.7
C. 66.7,16.7,33.3
D. 60.5,20.8,45.6
E. 68.6,20.8,30.9
A.75.5,45.8,60.6
B. 76.8,30.9,66.7
C. 66.7,16.7,33.3
D. 60.5,20.8,45.6
E. 68.6,20.8,30.9
给体重为60kg的患者应用某抗生素,已知该药物符合单室模型特征,消除半衰期为3.7小时,稳态最小血药浓度为3mg/L,表观分布容积为1.8L/kg,每8小时静脉注射给药1次,求:①维持剂量;②负荷剂量。
氨苄西林钠符合单室模型特征,表观分布容积为0.28L/kg,消除速率常数为0.69h-1,静脉注射给药,为使稳态血药浓度维持在0.6~17mg/L,求给药周期。
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