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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
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Pharmacology Clear and Simple- A Guide to Drug Classifications and Dosage Calculations
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4thEdition Watkins Test Bank
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1. A nurse working in radiology administers iodine to a patient who is having a
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computedtomography (CT) scan. The nurse working on the oncology unit
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administers chemotherapy to patients who have cancer. At the Public Health
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Department, a nurse administers a measles-mumps-rubella (MMR) vaccine to a
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14-month-old child as a routine immunization. Which branch of pharmacology best
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describes the actions of all 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
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involved with clinical pharmacology or pharmacotherapeutics, which is a branch
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of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose
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disease.The radiology nurse is administering a drug to help diagnose a disease.
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The oncology nurse is administering a drug to help treat a disease.
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Pharmacoeconomics includes any costs involved in drug therapy.
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Pharmacodynamics involves how a drug affects the body and pharmacokinetics is
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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
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victim. The nurse is aware this drug has a high abuse potential. Under
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whatcategory would morphine be classified?
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A) Schedule I ff
B) Schedule II ff
C) Schedule III ff
D) Schedule IV ff
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
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havelow abuse potential and limited dependence liability.
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3. When involved in phase III drug evaluation studies, what
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responsibilitieswould the nurse have?
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A) Working with animals who are given experimental drugs ff ff ff ff ff ff ff
B) Choosing appropriate patients to be involved in the drug study ff ff ff ff ff ff ff ff ff
C) Monitoring and observing patients closely for adverse effects ff ff ff ff ff ff ff
D) Conducting research to determine effectiveness of the drug ff ff ff ff ff ff ff
ANSWER: C
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Phase III studies involve use of a drug in a vast clinical population in
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whichpatients are asked to record any symptoms they experience while
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taking thedrugs. Nurses may be responsible for helping collect and
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analyze the information to be shared with the Food and Drug
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Administration (FDA) butwould not conduct research independently
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because nurses do not prescribe medications. Use of animals in drug
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testing is done in the preclinical trials. Select patients who are involved
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in phase II studies to participate in studies where the participants have
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the disease the drug is intended to treat. These patients are monitored
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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.
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Nurses may observe for adverse effects and toxicity.
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4. What concept is considered when generic drugs are substituted for
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brandname drugs?
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A) Bioavailability
B) Critical concentration ff
C) Distribution
D) Half-life
ANSWER: A
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