In a zero order elimination process, which of the following is true?
A
For highly polar drugs (e.g. mannitol) what primarily determines elimination rate?
A
Bioavailability is related to which of the following parameters, according to the equation F = 1 - E
C
For the majority of drugs, which of the following equations correctly defines clearance?
D
How much of a 10 mg dose of morphine reaches the systemic circulation given F = .24?
C
Given that the VD = 230 L/70Kg and Cl = 60 L/hr/70 Kg for morphine, approximately how much of a
10 mg IV dose remains after 8 hr, given to a normal 70 Kg patient?
C
Given F = .24, what is the overall hepatic clearance of morphine if the above patient has portal
hypertension such that their hepatic blood flow is reduced by ½? Assume the clearance value given
in the previous question is entirely hepatic clearance.
A
Which of the following enzymes could directly act on codeine?
D
Which Cytochrome P450 isozyme does not participate appreciably in drug metabolism?
D
Which of the following Cytochrome P450 isozymes is responsible for the bulk of phase I metabolism?
E
Which of the following enzymes could metabolize ethanol?
E
Which of the following are similarities between Cytochrome P450 and MAO?
C
What would be the preferred route of metabolism of succinyl choline?
C
Which of the following causes the smallest change in solubility?
A
Cigarette smoke causes an increase in levels of CYP1A isozymes. Theophylline is primarily
metabolized by the CYP1A system. What would happen to theophylline clearance for an asthmatic
patient in hospital who could not smoke?
C