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A Guide to Drug Classifications and Dosage Calculations,
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4th Editionby 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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tEdition 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 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 ofpharmacologybest 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
Feedback:
Pharmacology is the study of the biologic effects of chemicals. Nurses are involved witht t t t t t t t t t t t t
clinical pharmacology or pharmacotherapeutics, which is a branch of pharmacology
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that deals with the uses of drugs to treat, prevent, and diagnose disease. The radiology
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nurse is administering a drug to help diagnose a disease. The oncology nurse is
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administering a drug to help treat a disease. Pharmacoeconomics includes any costs
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involved in drug therapy. Pharmacodynamics involves how a drug affects the body
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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
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victim. The nurse is aware this drug has a high abuse potential. Under
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what category would morphine be classified?
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A) Schedule I t
B) Schedule II t
C) Schedule III t
D) Schedule IV t
ANSWER: B
, Feedback:
Narcotics with a high abuse potential are classified as Schedule II drugs
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tbecause of severe dependence liability. Schedule I drugs have high abuse
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tpotential and no accepted medical use. Schedule III drugs have a
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tlesser abuse potential than II and an accepted medical use. Schedule IV
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tdrugs have 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 t t t t t t t
B) Choosing appropriate patients to be involved in the drug study t t t t t t t t t
C) Monitoring and observing patients closely for adverse effects t t t t t t t
D) Conducting research to determine effectiveness of the drug t t t t t t t
ANSWER: C
Feedback:
Phase III studies involve use of a drug in a vast clinical population in
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twhich patients are asked to record any symptoms they experience while
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ttaking the drugs. Nurses may be responsible for helping collect and
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t analyze the information to be shared with the Food and Drug
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tAdministration (FDA) but would not conduct research independently t t t t t t t
tbecause nurses do not prescribe medications. Use of animals in drug
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t testing is done in the preclinical trials. Select patients who are involved in
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tphase II studies to participate in studies where the participants have the
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tdisease the drug is intended to treat. These patients are monitored closely
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tfor drug action and adverse effects. Phase I studies involve healthy
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human volunteers who are usually paid for their participation. Nurses
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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 t
C) Distribution
D) Half-life
ANSWER: A
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