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Test Bank - Focus on Nursing Pharmacology 9th Edition
by Amy Karch Chapter 1-59 | Complete Guide 2023

,Test Bank - Focus on Nursing Pharmacology (9th Edition by Karch) 3



Chapter 01 - Introduction to Drugs


A nurse working in radiology administers iodine to a patient who is having a computed tomography (CT)
scan. The nurse working on the oncology unit administers chemotherapy to patients who have
cancer. At the Public Health Department, a nurse administers a measles-mumps-rubella (MMR)
vaccine to a 14-month-old child as a routine immunization. Which branch of pharmacology best
describes the actions of all three nurses?


Pharmacoeconomics


Pharmacotherapeutics


Pharmacodynamics


Pharmacokinetics


Ans: 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 pharmacology that deals with the uses of
drugs to treat, prevent, and diagnose disease. The radiology nurse is administering a drug to help
diagnose a disease. The oncology nurse is administering a drug to help treat a disease.
Pharmacoeconomics includes any costs involved in drug therapy. Pharmacodynamics involves how a
drug affects the body and pharmacokinetics is how the body acts on the body.


A physician has ordered intramuscular (IM) injections of morphine, a narcotic, 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 what category would morphine be classified?


Schedule I


Schedule II


Schedule III


Schedule IV


Ans: B


Feedback:


Narcotics with a high abuse potential are classified as Schedule II drugs because of severe dependence
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,Test Bank - Focus on Nursing Pharmacology (9th Edition by Karch) 4


liability. Schedule I drugs have high abuse potential and no accepted medical use. Schedule III
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drugs have a lesser 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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When involved in phase III drug evaluation studies, what responsibilities would the nurse have?
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Working with animals who are given experimental drugs
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Choosing appropriate patients to be involved in the drug study
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Monitoring and observing patients closely for adverse effects
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Conducting research to determine effectiveness of the drug Ans: C
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Feedback:


Phase III studies involve use of a drug in a vast clinical population in which patients are asked to
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record any symptoms they experience while taking the drugs. Nurses may be responsible for helping
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collect and analyze the 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 medications. Use of
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animals in drug testing is done in the preclinical trials. Select patients who are involved in phase II
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studies to participate in studies where the participants have the disease the drug is intended to treat.
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These patients are monitored closely for drug action and adverse effects. Phase I studies involve
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healthy human volunteers who are usually paid for their participation. Nurses may observe for adverse
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qeffects and toxicity. q q




What concept is considered when generic drugs are substituted for brand name drugs?
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Bioavailability


Critical concentration
q




q Distribution


Half-life q




Ans: A


Feedback:


Bioavailability is the portion of a dose of a drug that reaches the systemic circulation and is available to
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qact on body cells. Binders used in a generic drug may not be the same as those used in the brand
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name drug. Therefore, the way the body breaks down and uses the drug may differ, which may
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eliminate a generic drug substitution. Critical concentration is the amount of a drug that is needed to
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cause a therapeutic effect and should not differ between generic and brand name medications.
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Distribution is the phase of pharmacokinetics, which involves the movement of a drug to the body’s
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tissues and is the q q q




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same in generic and brand name drugs. A drug’s half-life is the time it takes for the amount of drug to
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decrease to half the peak level, which should not change when substituting a generic medication.
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A nurse is assessing the patient’s home medication use. After listening to the patient list current
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medications, the nurse asks what priority question? q q q q q q




Do you take any generic medications?
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Are any of these medications orphan drugs?
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Are these medications safe to take during pregnancy?
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Do you take any over-the-counter medications?
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Ans: D


Feedback:


It is important for the nurse to specifically question use of over-the-counter medications because
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patients may not consider them important. The patient is unlikely to know the meaning of orphan drugs
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qunless they too are health care providers. Safety during pregnancy, use of a generic medication, or
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classification of orphan drugs are things the patient would be unable to answer but could be found in
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reference books if the nurse wishes to research them. q q q q q q q q




After completing a course on pharmacology for nurses, what will the nurse know?
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Everything necessary for safe and effective medication administration
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Current pharmacologic therapy; the nurse will not require ongoing education for 5 years.
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General drug information; the nurse can consult a drug guide for specific drug information.
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q The drug actions that are associated with each classification of medication Ans:
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Feedback:


After completing a pharmacology course nurses will have general drug information needed for safe
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and effective medication administration but will need to consult a drug guide for specific drug
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information before administering any medication. Pharmacology is constantly changing, with new
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drugs entering the market and new uses for existing drugs identified. Continuing education in
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pharmacology is essential to safe practice. Nurses tend to become familiar with the medications they
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administer most often, but there will always be a need to research new drugs and also those the nurse is
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qnot familiar with because no nurse knows all medications.
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