Module 1 Formative Quiz Flashcards

1
Q

which process, regarding the elimination of a compound from a compartment best reflects that is is saturable

A

Michaelis-Monton kinetics

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2
Q

which characteristic of a neuromodulator would be best associated with an effect lasting for only a short duration

A

low receptor affinity

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3
Q

Drug X has a higher apparent Vd than drug Y. which drug (X or Y) should require a higher dose to achieve a given plasma concentration, compared to the other drug?

A

X

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4
Q

what is calcuated volue of distribution (Vd) for a 120 mg IV dose of a drug achieving a C max of 1 mg/L

A

120L

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5
Q

which type of ligand-receptor bond would correspond to the expression “highest affinity”

A

covalent

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6
Q

which molecule is least likely to be found on a list of regulatory proteins?

A

acetylcholine

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7
Q

which plasma protein functions as a chaperone for most drugs in the systemic ci rculation

A

albumin

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8
Q

which statement is best reflects/ is consistent with the expression “therapeutic index”

A

the ratio between dose-response beneficial and adverse effects of a particular drug

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9
Q

what is the major differentating factor between the terms efficacy and potency?

A

potency is the amount of drug required for a given response

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10
Q

what is the maximum response on a drug-response curve termed?

A

Emax

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11
Q

in which direction will the dose response curve of an agonist (drug x) shifts in the presence of a competitive antagonist?

A

to the right

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12
Q

which type of competitive antagonist effect on a dose-reponse curve can predictably be overcome by increasing the concentration of the agonist?

A

reversible competitive antagonist

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13
Q

what is the mechanism of action of fluoxetine?

A

it is a serotonin reuptake inhibitor

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14
Q

what is the predominant receptor class for B2 adrenoreceptors?

A

G protein coupled receptors

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15
Q

what is the predominant GABA agonist receptor class

A

Channel linked receptor

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16
Q

what is the principle mechanism most drugs exert their effect on target tissues?

  • Decoupling proton cycling in mitochondria
  • Altering DNA
  • Activating second messenger cascades
  • Activating structural proteins
A

binding to receptor proteins

17
Q

which statement about most therapeutic drug-receptors complexes is true?

A

the formation of the complex is predictably revesible

18
Q

a ligand bind to specific receptor and initiates a cellular response that is predictably coupled to a biological response is known as _________

A

agonist

19
Q

which mode of drug administration is consistent with the highest bioavability?

A

IV

20
Q

which of the following common expressions is the proper substitute for “adverse drug reaction”

A

side effect