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Chapter 01: Information Sources, Regulatory Agencies, Drug Legislation, and
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Prescription Writing
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Haveles: Applied Pharmacology for the Dental Hygienist, 9th Edition
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MULTIPLE CHOICE Q
1. Knowledge of pharmacology aids the dental professional in Q Q Q Q Q Q Q
a. obtaining a patient’s healthphistory. Q Q Q
b. administering drugs in the office. Q Q Q Q
c. handling emergency situations. Q Q
d. selection of a nonprescription medication. Q Q Q Q
e. All of the above. Q Q Q
ANS: E Q
All of the choices are true. Because many of our patients are being treatedpwith drugs, knowledg
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epof pharmacology helps in understanding and interpreting patients’ responses to health history
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questions. Knowledge of the therapeutic and adverse effects of medications obviously helps in t
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heir proper administration in the office. Emergency situations may be caused by drugs or treated
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by drugs; thus, knowledge of pharmacology is of great help, especially because a rapid respons
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epis sometimes required. A clear understanding of thepconcepts of drug action, drug handling by
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the body, and drug interactions will allow the dental practitioner to make proper judgments and
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grasp the concepts relevant to new drug therapies on the market.
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DIF: Application
REF: Role of the Dental Hygienist (Medication/Health History), Role of the Dental Hygienist
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(Medication Administration), Role of the Dental Hygienist (Emergency Situations), Role of thepDental
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Hygienist (NonprescriptionpMedication) | pp. 2-3 OBJ:
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1 TOP: NBDHE, 6.0. Pharmacology
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2. Which of the followingpstatements is true regarding planning appointments?
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a. Whether or not patients are taking medication for systemic diseases is of little consequence
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Q in the dental office.
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b. Asthmatic patients should have dental appointments in the morning. Q Q Q Q Q Q Q Q
c. Diabetic patients usually havepfewer problems with a morning appointment compared withp
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afternoon appointments.
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d. Both B and C are true. Q Q Q Q Q
ANS: D Q
Asthmatic patients who experiencepdental anxiety should schedule their appointments when the
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y are not rushed or under pressurepearly in the morning. Diabetic patients usually have relatively
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fewer problems with a morning appointment. Patients taking medication for systemic diseases
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may require special handling inpthe dental office.
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DIF: Comprehension
REF: Rolepof the Dental Hygienist (Appointment Scheduling) | p. 3 OBJ:
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1 TOP: NBDHE, 6.0. Pharmacology
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3. Nutritional or herbal supplements Q Q Q
a. carry the U.S. Foodpand Drug Administration (FDA) approval for disease states.
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, b. are not drugs. Q Q
c. can causepadverse effects.
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d. will not interact with other drugs the patient may be taking.
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ANS: C Q
Nutritional or herbal supplements are quite capable of causing adversepeffects. The majority of n
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utritional or herbal supplements do not carry FDA approval for treating disease states. These su
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pplements are drugs and can cause adverse effects and interact with different drugs.
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DIF: Comprehension
REF: Rolepof the Dental Hygienist (Nutritional or Herbal Supplements) | p. 3 OBJ:
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1 TOP: NBDHE, 6.0. Pharmacology
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4. Which type of drug name usually begins with a lowercase letter?
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a. Brand name Q
b. Code name Q
c. Generic name Q
d. Trade name Q
ANS: C Q
Before any drug is marketed, it is given a generic name that becomes the “official” name of the
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drug. Each drug is assigned only one generic name selected by the U.S. Adopted Name Council,
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and the name is not capitalized. The brand name is equivalent to the tradepname and is capitaliz
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ed. Although thepbrand name is technically the name of the company marketing the product, this
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term is often used interchangeably with the tradepname. The code name is thepinitial term used
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within a pharmaceutical company to refer to a drug while it is undergoing investigation andpis of
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ten a combination of capital letters and numbers, the letters representingpan abbreviation of thepc
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ompany name.
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DIF: Comprehension REF: Drug Names | p. 4 Q Q Q Q Q
OBJ:
Q 3 TOP: NBDHE, 6.0. Pharmacology Q Q Q
5. A drug’s generic name is selected by the
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a. pharmaceutical company manufacturing it. Q Q Q
b. Food and Drug Administrationp(FDA). Q Q Q
c. U.S. Adopted Name Council. Q Q Q
d. Federal Patent Office. Q Q
ANS: C Q
Each drug is assigned only one generic name (e.g., ibuprofen). It is selected by thepU.S.
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Adopted Name Council. The generic name is not selected by the FDA or the Federal Patent Offi
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ce. The pharmaceutical company manufacturing the drugpclearly has an influence on the generic
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name given its drug, but the final decision is not the company’s.
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DIF: Recall REF: Drug Names | p. 4 Q Q Q Q Q OBJ:
3 TOP: NBDHE, 6.0. Pharmacology
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6. Which of the following is true concerningpgeneric and trade names of drugs?
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a. A drug may only have one genericpname and one trade name.
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b. A drug may only have one genericpname, but it may havepseveral trade names.
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c. A drug may have several generic names, but it may only have one trade name.
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d. A drug may have several generic names and several tradepnames.
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ANS: B Q
, Each drug has only one generic name but may have several trade names. For each drug, there is
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only one generic name. It is not capitalized, and itpbecomes the “official” name of the drug. Thep
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Qpharmaceutical company discoveringpthe drug gives the drug a trade name. The trade name is pr
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otected by thepFederal PatentpLaw for 20 years from the earliest claimed filing date, plus patent t
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erm extensions. Although the brand name is technically the name of the company marketing the
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product, it is often used interchangeably with the trade name.
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DIF: Comprehension REF: Drug Names | p. 4 Q Q Q Q Q
OBJ:
Q 3 TOP: NBDHE, 6.0. Pharmacology Q Q Q
7. Two drugs that are found to be chemically equivalent, but not biologically equivalent or thera
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peutically equivalent are said to differ in
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a. potency.
b. efficacy.
c. bioavailability.
d. therapeutic index. Q
ANS: C Q
A preparationpcan be chemically equivalent yet not biologically or therapeutically equivalent. T
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hesepproducts arepsaid to differ in their bioavailability. The potency of a drug is a function of the
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amount of drug required to produce an effect. Thepefficacy is the maximum intensity of effectpor
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response that can be produced by a drug. The therapeutic index is the ratio of the lethal dose for
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50% of the experimental animals divided by the effective dose for 50% of the experimental ani
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mals. If the value of the therapeutic index is small, toxicity is moreplikely.
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DIF: Recall REF: Drug Names (Drug Substitution) | p. 5 OBJ: 4 TOP: N
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BDHE, 6.0. Pharmacology
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8. How many years must pass after a drug patent expires before other drug companies can marke
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tpthe same compound as a generic drug?
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a. 20 years Q
b. 17 years Q
c. 7 years Q
d. 0 years Q
ANS: D Q
Once a drug patent expires, competingpcompanies may immediately market the same compound
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in generic form. The pharmaceutical company discovering the drug gives the drug a trade name
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. The trade name is protected by the Federal Patent Law for 20 years from the earliest claimed fil
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Qingpdate, plus the patent term extensions. Q Q Q Q Q
DIF: Application REF: Drug Names (Drug Substitution) | p. 5 OBJ: 4 TO
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P: NBDHE, 6.0. Pharmacology
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9. Two drugpformulations that produce similar concentrations in the blood and tissues after drug
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administrationpare termed
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a. chemically
b. biologically
c. therapeutically
ANS: B Q
Biologic equivalence refers to identical pharmacokinetic parameters of two drugpformulations (
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bioequivalence, for short). Chemical equivalence indicates that two formulations of a drug meet
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, the chemical and physical standards established by the regulatory agencies. Therapeutic equiva
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lencepmeans that two formulations produce the same therapeutic effects over the same duration.
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DIF: Application REF: Drug Names (Drug Substitution) | p. 5 OBJ: 4 TO
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P: NBDHE, 6.0. Pharmacology
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10. The federal body that determines whether a drug is considered a controlled substance and to w
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hich schedule itpbelongs is the
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a. Food and Drug Administration (FDA). Q Q Q Q
b. Federal Trade Commission (FTC). Q Q Q
c. Drug Enforcement Administration (DEA). Q Q Q
d. U.S. Pharmacopeia (USP). Q Q
ANS: C Q
The DEA regulates thepmanufacture and distribution of substances with abuse potential.
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Hence prescriber DEA numbers must appear on prescriptions for controlled substances. The FD A
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does not have any special powers in regard to drugs of abuse. ThepFTC regulates commerce a nd
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advertising claims of foods, over-the-
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counter (OTC) products, and cosmetics. The USP regulates the uniformity and purity of drugs.
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DIF: Comprehension Q Q Q
REF: Federal Regulations and Regulatory Agencies (US Drug Enforcement Administration) | p. 5 OBJ:
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5 TOP: NBDHE, 6.0. Pharmacology
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11. Which federal regulatory agency decides whichpdrugs require a prescription and which drugs
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may bepsold over-the-counter (OTC)?
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a. FDA
b. OSHA
c. FTC
d. DEA
ANS: A Q
The Food and DrugpAdministration (FDA) is part of Department of Human and Health Services
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(DHHS), and determines what drugs may be soldpby prescription andpOTC and regulates the lab
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eling and advertising of prescription drugs. The Occupational Safety and Health Administration
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(OSHA) ensures the safety and health of workers in thepUnited States by setting and enforcing s
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tandards. The Federal Trade Commission (FTC) regulates theptrade practices of drug companies
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and prohibits thepfalsepadvertising of foods, nonprescription (OTC) drugs, and cosmetics. Thep
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QDrug Enforcement Administrationp(DEA) is a part of the Department of Justice and regulates th
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epmanufacture and distribution of substances that have appotential for abuse, including opioids, s
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timulants, and sedatives.
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DIF: Recall
REF: Federal Regulations and Regulatory Agencies (US Food and DrugpAdministration) | p. 5
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OBJ:
Q 5 TOP: NBDHE, 6.0. Pharmacology Q Q Q
12.
Whichpfederal regulatory body regulates theptrade practices of drug companies and prohibits fal
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se advertisingpof foods, nonprescription drugs, and cosmetics?
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a. FDA
b. FTC
c. DEA
d. OBRA