The first step in determining the pharmacokinetic parameters desired is to determine AUC and AUMC. Since in this problem you are not given the concentration-time date, but rather the intercepts and rate constants, AUC and AUMC should be calculated from:

 

AUC = C1/l 1 + C2/l 2

AUMC = C1/(l 1)2 + C2/(l 2)2

For this example, AUC = 96.4 mg.hr/L and AUMC = 354 mg.hr2/L

CL can be determined as

CL = Div ¸ AUC = 100 mg/96.4 mg.hr/L = 1.04 L/hr

Vss is given as

Vss = (DivAUMC) ¸ (AUC)2 = 3.8 L

MRT = Vss ¸ CL = (3.8 L) ¸ (1.04 L/hr)

 

 

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