18. Pharmacolgy Flashcards
Therapeutic index
LD50 / ED50
Highest and lowest context half life
Highest Thiopental
Lowest propofol
Context half life in opiates
After 140 min. F > Alof >Suf > Remi
B4 140 min Alof > F > S > Remi
C50. Definition and in opiates
Concentration producing 50% of the maximum effect
S > F = R > A
Clearance is independent of
Concentration of the drug
Volume of distrubution
Bolus / concentration in blood
Extraction ratio conected to liver blood flow
In ER is low, no affected by liver flow
If ER is high, it is affected
0 order K vs 1 order
0 constant
1 variable until exhaustion (turn into 0)
Potency of opiates
S > R = F > A
Opiates and BZP interaction
Synergistic
Propofol weight for induction and maintenance
For induction LBW
For maintenance TBW
Fat tissue and vapors
Adipose tissue accumulates it slowly, takes until 30 hours to reach equilibrium
Isobole definition
Graft that represents combination of 2 drugs to create a certain effect
Fentanyl, order of action
Analgesia > Resp D > Decrease laryngospasm > EEG changes
Drugs no metabolized by the liver
Remi, Scoline, Esmolol (plasma)
Panacorium (kidney)