Actual Exam With Complete 100 Questions And
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Acetylcholine works at the neuromuscular junction to activate:
an emotional response.
smooth muscles.
the digestive process.
skeletal muscles. - ANSWER-skeletal muscles.
The elimination phase of pharmacokinetics is the time it takes for the
plasma concentration of a drug to decrease by:
25%.
50%.
75%.
100%. - ANSWER-50%.
The relationship between an effect of a drug and the amount of drug
given is known as:
bioavailability.
pg. 1
,dose response curve.
affinity.
absorption. - ANSWER-dose response curve.
Distribution of a drug is determined by the:
amount of drug entering circulation.
proportion of drug removed from circulation.
chemical alteration of a drug to a water-soluble state.
reversible transfer of drug from one location to another within the body.
- ANSWER-reversible transfer of drug from one location to another
within the body.
Fick's Law of Diffusion describes drug mobility as the:
binding of drugs to protein in order to move down a concentration
gradient, across a membrane.
movement of free water molecules across a semipermeable membrane,
down a concentration gradient.
passive diffusion of non-ionized drugs down a concentration gradient
from an area of high concentration to low concentration.
ionized drugs diffuse actively down a concentration gradient from high
concentration to low concentration. - ANSWER-passive diffusion of
non-ionized drugs down a concentration gradient from an area of high
concentration to low concentration.
pg. 2
,The correct sequence of the movement of a drug through the body is:
absorption, metabolism, distribution, excretion.
absorption, distribution, metabolism, excretion.
distribution, metabolism, absorption, excretion.
excretion, absorption, distribution, metabolism. - ANSWER-absorption,
distribution, metabolism, excretion.
When two medications are taken at the same time, causing them to
chelate, this is known as a(n):
absorption interaction.
metabolism interaction.
elimination interaction.
distribution interaction. - ANSWER-absorption interaction.
The protein-bound part of a drug is:
highly active.
highly volatile.
ready for excretion.
inactive and acts as a reservoir. - ANSWER-inactive and acts as a
reservoir.
The most common method by which drugs are chemically altered within
the liver is:
pg. 3
, electrolysis.
oxidation.
reduction.
hydrolysis. - ANSWER-oxidation.
Activation of alpha-1 receptors does NOT:
cause vasoconstriction.
cause mydriasis.
increase closure of the internal bladder sphincter.
inhibit insulin release. - ANSWER-inhibit insulin release.
If a 100-mg drug is administered and has a half-life of 6 hours, the
percentage of the drug that will be in the system 18 hours later is:
6%.
12.5%.
25%.
0.5 - ANSWER-12.5%.
The signal transduction process that carries transmitters (e.g., steroid
hormones) to distant sites via the circulatory system is known as:
autocrine.
cytokine.
endocrine.
pg. 4