Linuron, a derivative of urea, is used as an herbicide. Linuron serum levels were measured in 4Kg rabbits following a bolus IV injection of 10mg/kg. Time (minutes) Serum Linuron Levels (ug/ml) following IV dose 10 15.48 20 8.60 30 5.90 45 3.78 60 2.42 90 1.49 120 0.93 180 0.60 240 0.41 300 0.29 360 0.22 Analyze this data and perform the necessary calculations to determine the following pharmacokinetic parameters from the IV data: (5 points per parameter, 24 parameters/variables ■ 120 points possible). You do NOT need to submit graphs or data tables. Give the terminal regression line equation and R or R² value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the residual regression line equation and R or R² value: Give the x axis (name and units, if any) of the residual line: Give the y axis (name and units, if any) of the residual line:

Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN:9781305143531
Author:CURREN
Publisher:CURREN
Chapter9: Parenteral Medication Labels And Dosage Calculation
Section: Chapter Questions
Problem 6.4P
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Biopharmaceutics and Pharmacokinetics:Two-Compartment Model Instant Absorption Questions

Calculate these :

a) B1,  

b) B2,  

c) hybrid rate constant (1)

d) hybrid rate constant (2)

e) t1/2,dist

f) t1/2,elim  

g) k10

h) k12

i) k21

j) initial concentration (C0)  

k) central compartment volume (V1)

l) steady-state volume (Vss)  

m) clearance (CL)  AUC (0→10 min) using trapezoidal rule

n)  AUC (20→30 min) using trapezoidal rule

o) AUCtail (AUC360→∞)  

p) total AUC (using short cut method)

q) volume from AUC (VAUC) 

Linuron, a derivative of urea, is used as an herbicide. Linuron serum levels were measured in 4Kg
rabbits following a bolus IV injection of 10mg/kg.
Time (minutes)
Serum Linuron Levels (ug/ml)
following IV dose
10
15.48
20
8.60
30
5.90
45
3.78
60
2.42
90
1.49
120
0.93
180
0.60
240
0.41
300
0.29
360
0.22
Analyze this data and perform the necessary calculations to determine the following pharmacokinetic
parameters from the IV data: (5 points per parameter, 24 parameters/variables ■ 120 points
possible). You do NOT need to submit graphs or data tables.
Give the terminal regression line equation and R or R² value:
Give the x axis (name and units, if any) of the terminal line:
Give the y axis (name and units, if any) of the terminal line:
Give the residual regression line equation and R or R² value:
Give the x axis (name and units, if any) of the residual line:
Give the y axis (name and units, if any) of the residual line:
Transcribed Image Text:Linuron, a derivative of urea, is used as an herbicide. Linuron serum levels were measured in 4Kg rabbits following a bolus IV injection of 10mg/kg. Time (minutes) Serum Linuron Levels (ug/ml) following IV dose 10 15.48 20 8.60 30 5.90 45 3.78 60 2.42 90 1.49 120 0.93 180 0.60 240 0.41 300 0.29 360 0.22 Analyze this data and perform the necessary calculations to determine the following pharmacokinetic parameters from the IV data: (5 points per parameter, 24 parameters/variables ■ 120 points possible). You do NOT need to submit graphs or data tables. Give the terminal regression line equation and R or R² value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the residual regression line equation and R or R² value: Give the x axis (name and units, if any) of the residual line: Give the y axis (name and units, if any) of the residual line:
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