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A Guide to Drug Classifications and Dosage Calculations,
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5th Edition by Cynthia J. Watkins
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Chapters 1 - 21
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,Chapter 1. History of Pharmacology
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Pharmacology Clear and Simple- A Guide to Drug Classifications and Dosage Calculations 4th
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Edition Watkins Test Bank
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1. A nurse working in radiology administers iodine to a patient who is having a computed
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tomography (CT) scan. The nurse working on the oncology unit administers
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chemotherapy to patients who have cancer. At the Public Health Department, a nurse
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administers a measles-mumps-rubella (MMR) vaccine to a 14-month-old child as a
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routine immunization. Which branch of pharmacology best describes the actions of all
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three nurses?
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A) Pharmacoeconomics
B) Pharmacotherapeutics
C) Pharmacodynamics
D) Pharmacokinetics
ANSWER: B
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Pharmacology is the study of the biologic effects of chemicals. Nurses are involved ft ft ft ft ft ft ft ft ft ft ft ft
with clinical pharmacology or pharmacotherapeutics, which is a branch of
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pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease.
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The radiology nurse is administering a drug to help diagnose a disease. The oncology
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nurse is administering a drug to help treat a disease. Pharmacoeconomics includes any
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costs involved in drug therapy. Pharmacodynamics involves how a drug affects the
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body and pharmacokinetics is how the body acts on the body.
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2. A physician has ordered intramuscular (IM) injections of morphine, a
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narcotic, every 4 hours as needed for pain in a motor vehicle accident victim.
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The nurse is aware this drug has a high abuse potential. Under what
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category would morphine be classified?
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A) Schedule I ft
B) Schedule II ft
C) Schedule III ft
D) Schedule IV ft
ANSWER: B
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Narcotics with a high abuse potential are classified as Schedule II drugs
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because of severe dependence liability. Schedule I drugs have high abuse
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potential and no accepted medical use. Schedule III drugs have a lesser
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abuse potential than II and an accepted medical use. Schedule IV drugs have
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low abuse potential and limited dependence liability.
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3. When involved in phase III drug evaluation studies, what responsibilities
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would the nurse have?
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A) Working with animals who are given experimental drugs ft ft ft ft f t f t ft
B) Choosing appropriate patients to be involved in the drug study ft f t ft ft ft ft ft ft ft
C) Monitoring and observing patients closely for adverse effects ft f t ft f t ft f t ft
D) Conducting research to determine effectiveness of the drug f t f t ft f t f t ft f t
ANSWER: C
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Phase III studies involve use of a drug in a vast clinical population in which
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patients are asked to record any symptoms they experience while taking the
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drugs. Nurses may be responsible for helping collect and analyze the
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information to be shared with the Food and Drug Administration (FDA) but
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would not conduct research independently because nurses do not prescribe
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medications. Use of animals in drug testing is done in the preclinical trials.
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Select patients who are involved in phase II studies to participate in studies
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where the participants have the disease the drug is intended to treat. These
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patients are monitored closely for drug action and adverse effects. Phase I
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studies involve healthy human volunteers who are usually paid for their
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participation. Nurses may observe for adverse effects and toxicity.
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4. What concept is considered when generic drugs are substituted for brand
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name drugs?
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A) Bioavailability
B) Critical concentration f t
C) Distribution
D) Half-life
ANSWER: A
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