65.某藥物以靜脈注射投與800 mg後,得
mg.h/L,腎排除速率常數為0.12 h-1。口服投與二倍劑量後,其血中濃度經時變化為C=56(
),尿中原形藥物排出總量為720 mg,則此藥之絕對可用率約為若干?(t:hr;C:mg/L)
(A)0.60
(B)0.75
(C)0.80
(D)0.85
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統計: A(412), B(2616), C(416), D(199), E(0) #3135452
統計: A(412), B(2616), C(416), D(199), E(0) #3135452
詳解 (共 9 筆)
#5924354
29
0
#6007750
0.12/0.2 = 0.6 (fe)
720 mg / 0.6 = 1200 mg
1200 mg/1600 mg =0.75
16
0