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A Guide to Drug Classifications and Dosage Calculations,
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4th Edition by Cynthia J. Watkins
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Chapters 1 - 21
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,Chapter 1. History of Pharmacology
Pharmacology Clear and Simple-
A Guide to Drug Classifications and Dosage Calculations 4thEdition Watkinsh Test Bank
1.
A nurse working in radiology administers iodine to a patient who is having a com
p utedtomography (CT) scan. The nurse working on the oncology unit administers c
he motherapy to patients who have cancer. At the Public Health Department, a nur
se a dministers a measles-mumps-rubella (MMR) vaccine to a 14-month-
old child as a routine immunization. Which branch of pharmacology best describes th
e actions of all three nurses?
A) Pharmacoeconomics
B) Pharmacotherapeutics
C) Pharmacodynamics
D) Pharmacokinetics
ANSWER: B
Feedback:
Pharmacology is the study of the biologic effects of chemicals. Nurses are involved
with clinical pharmacology or pharmacotherapeutics, which is a branch of pharma
c o logy that deals with the uses of drugs to treat, prevent, and diagnose disease.Th
e radiology nurse is administering a drug to help diagnose a disease. The oncolog
y n urs e is administering a drug to help treat a disease. Pharmacoeconomics inclu
des any costs involved in drug therapy. Pharmacodynamics involves how a drug affe
cts the body and pharmacokinetics is how the body acts on the body.
2.
A physician has ordered intramuscular (IM) injections of morphine, a na rco
t ic, every 4 hours as needed for pain in a motor vehicle accident victim
. The nurse is aware this drug has a high abuse potential. Under whatcat
egory would morphine be classified?
A) Schedule I
B) Schedule II
C) Schedule III
D) Schedule IV
ANSWER: B
, Feedback:
Narcotics with a high abuse potential are classified as Schedule II drugs be
cause of severe dependence liability. Schedule I drugs have high abuse po t
ential and no accepted medical use. Schedule III drugs have a lesser abu
se potential than II and an accepted medical use. Schedule IV drugs havel
ow
abuse potential and limited dependence liability.
3.
When involved in phase III drug evaluation studies, what responsibili
tieswould the nurse have?
A) Working with animals who are given experimental drugs
B) Choosing appropriate patients to be involved in the drug study
C) Monitoring and observing patients closely for adverse effects
D) Conducting research to determine effectiveness of the drug
ANSWER: C
Feedback:
Phase III studies involve use of a drug in a vast clinical population in which
patients are asked to record any symptoms they experience while taking t
hedrugs. Nurses may be responsible for helping collect and analyze the inf
ormation to be shared with the Food and Drug Administration (FDA) butw
ould not conduct research independently because nurses do not prescribe
medications. Use of animals in drug testing is done in the preclinical trials.
Select patients who are involved in phase II studies to participate in stu
di e s where the participants have the disease the drug is intended to treat
. T h ese patients are monitored closely for drug action and adverse effect
s. Ph a se I studies involve healthy human volunteers who are usually paid
for t hei
r participation. Nurses may observe for adverse effects and toxicity.
4.
What concept is considered when generic drugs are substituted forbrandna
me drugs?
A) Bioavailability
B) Critical concentration
C) Distribution
D) Half-life
ANSWER: A
Feedback: