HASIL DISKUSI
Parameter
intravena
|
Intravena
|
Kurva
Regresi
Volume distribusi (Vd)
Fraksi
|
Semuanya
1
|
Orde 0
Ke = -b
t
Vd =
|
Orde 1
Ke = -(-b(2,3))
t =
Vd =
|
Ø AUC
1. [AUC] = x (tn – (tn-1))
2. [AUC]
=
3. [AUC] =
4. %
AUC =
Contoh
soal:
Data
baku
t (menit)
|
Cp (µg/mL)
|
1
|
0,049
|
2
|
0,101
|
3
|
0,149
|
4
|
0,185
|
5
|
0,230
|
Dosis
obat = 10 mg
a
= 0,009
b
= 0,0446
r = 0,998065112
|
Data
sampel
t (menit)
|
Absorbansi
|
Cp (µg/mL)
|
Log Cp
|
1
|
0,212
|
4,613
|
0,663
|
2
|
0,142
|
3,022
|
0,480
|
3
|
0,113
|
2,363
|
0,373
|
4
|
0,066
|
1,295
|
0,112
|
5
|
0,050
|
0,931
|
-0,031
|
6
|
0,033
|
0,545
|
-0,23
|
7
|
0,015
|
0,136
|
-0,866
|
8
|
0,012
|
0,068
|
-1,167
|
Orde 0
a = 4,410714286
b = -0,619797619
r
= -0,951456361
|
Orde 1
a = 1,069
b = -0,257
|
Berdasarkan
datanya termasuk orde 1
Ke = -(-b(2,3))
= -(-(-0,257) (2,3))
= - 0,257 x 2,3
= - 0,591 menit-1
t =
=
= -1,172 menit
Vd =
=
= 853,169 mL
Ø AUC
1. [AUC]tntn-1 = x (tn – (tn-1))
a) [AUC]21 =
x (2– 1) = 3,817 µg menit/mL
b) [AUC]32 = x (3– 2) = 2,692 µg menit/mL
c) [AUC]43 = x (4– 3) = 1,829 µg menit/mL
d) [AUC]54 = x (5– 4) = 1,113 µg menit/mL
e) [AUC]65 = x (6– 5) = 0,738 µg menit/mL
f) [AUC]76 = x (7– 6) = 0,340 µg menit/mL
g) [AUC]87 = x (8– 7) = 0,102 µg menit/mL
Ɛ
AUC = 10,631 µg menit/mL
2. [AUC]ttn =
=
= 0,115 µg/mL
3. [AUC]tto =
=
=
= 19,832 µg/mL
4. %
AUC =
=
= 1,081 %
Jadi, berdasarkan nilai % AUC ekstrapolasi di
dapatkan hasil 11,341% yang dimana 20%, artinya dapat di simpulkan bahwa data
tersebut merupakan data yang valid.
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