WGU D398 Introduction to Pharmacology | Objective Assessments | OA V1, V2 and V3 | All OA Versions | 300+ Questions and Answers | Update | 100% Correct.

WGU D398 Introduction to Pharmacology | Objective Assessments |
OA V1, V2 and V3 | All OA Versions | 300+ Questions and Answers |
Update | 100% Correct.
Question 1
Which piece of legislation was the first to establish standards for drug strength, purity, and
quality in the United States?
A) The 1938 Federal Food, Drug, and Cosmetic Act
B) The 1970 Controlled Substances Act
C) The 1906 Pure Food and Drug Act
D) The 1994 Dietary Supplement Health and Education Act
E) The 2013 Drug Quality and Security Act

Correct Answer: C) The 1906 Pure Food and Drug Act
Rationale: The Pure Food and Drug Act of 1906 was the landmark first federal law that
established the first government-enforced standards for medications. It was primarily
concerned with ensuring that drugs were labeled accurately and were not adulterated,
setting the foundation for future drug regulation.

Question 2
Which federal agency was established by the 1938 Federal Food, Drug, and Cosmetic Act and is
responsible for enforcing rules on drug labeling, approval, and safety?
A) The Drug Enforcement Agency (DEA)
B) The Centers for Disease Control and Prevention (CDC)
C) The National Institutes of Health (NIH)
D) The Food and Drug Administration (FDA)
E) The United States Pharmacopeia (USP)

Correct Answer: D) The Food and Drug Administration (FDA)
Rationale: The 1938 Act significantly expanded federal authority over drug safety and
created the FDA. The FDA is tasked with reviewing new drug applications, ensuring the
safety and efficacy of drugs before they are marketed, and regulating how drugs are
labeled and advertised.

Question 3
The 1970 Controlled Substances Act created which federal agency to enforce laws related to

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drugs with abuse potential?
A) The Food and Drug Administration (FDA)
B) The Federal Bureau of Investigation (FBI)
C) The Drug Enforcement Agency (DEA)
D) The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)
E) The Department of Health and Human Services (HHS)

Correct Answer: C) The Drug Enforcement Agency (DEA)
Rationale: The Controlled Substances Act of 1970 consolidated all previous drug control
laws and created the DEA. The DEA is the primary federal agency responsible for
enforcing the laws and regulations governing controlled substances, including their
manufacture, distribution, and dispensing.

Question 4
A drug that is categorized as Schedule I under the Controlled Substances Act has which of the
following characteristics?
A) A low potential for abuse and an accepted medical use.
B) A moderate potential for abuse and is available over-the-counter.
C) A high potential for abuse but is not approved for medical use in the U.S.
D) The lowest potential for abuse and requires a prescription.
E) A high potential for abuse but can be prescribed with refills.

Correct Answer: C) A high potential for abuse but is not approved for medical use in the
U.S.
Rationale: Schedule I is the most restrictive category. It is reserved for substances that have
a high potential for abuse, no currently accepted medical use in treatment in the United
States, and a lack of accepted safety for use under medical supervision. Examples include
heroin and LSD.

Question 5
A patient is prescribed a medication for anxiety that is classified as a Schedule IV controlled
substance. Which of the following drugs falls into this category?
A) Heroin
B) Morphine

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C) Anabolic steroids
D) Diazepam
E) Cough suppressants with codeine

Correct Answer: D) Diazepam
Rationale: Schedule IV substances have a low potential for abuse and a low risk of
dependence. Benzodiazepines like diazepam (Valium) and sedatives like phenobarbital fall
into this category. Morphine is Schedule II, and cough suppressants with codeine are often
Schedule V.

Question 6
The name N-acetyl-para-aminophenol represents which type of drug identifier?
A) Generic name
B) Trade name
C) Chemical name
D) Drug class
E) Broad classification

Correct Answer: C) Chemical name
Rationale: The chemical name describes the drug's exact molecular formula and chemical
structure. N-acetyl-para-aminophenol is the chemical name for the drug more commonly
known by its generic name, acetaminophen, or its trade name, Tylenol.

Question 7
The names Zocor®, Lipitor®, and Crestor® are all examples of which type of drug identifier?
A) Generic names
B) Chemical names
C) Drug classes
D) Trade names
E) Broad classifications

Correct Answer: D) Trade names
Rationale: Trade names (or brand names) are the proprietary, copyrighted names that

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pharmaceutical companies use to market their drugs. These three names are the trade
names for simvastatin, atorvastatin, and rosuvastatin, respectively.

Question 8
Simvastatin is the _____ name for the drug marketed as Zocor®, which belongs to the _____
class of "statins."
A) chemical / antihypertensive
B) generic / cholesterol synthesis inhibitor
C) trade / beta-blocker
D) chemical / anti-anxiety
E) generic / alpha-2 agonist

Correct Answer: B) generic / cholesterol synthesis inhibitor
Rationale: Simvastatin is the common, general identifying name (generic name). Its
mechanism of action is to inhibit HMG-CoA reductase, an enzyme involved in cholesterol
synthesis, placing it in the "statin" drug class. Its broad classification is a lipid-lowering
agent.

Question 9
A patient is prescribed propranolol. The nurse knows this drug belongs to which specific drug
class?
A) Benzodiazepine
B) Alpha-2 agonist
C) Beta-blocker
D) Statin
E) Angiotensin-converting enzyme (ACE) inhibitor

Correct Answer: C) Beta-blocker
Rationale: Propranolol (Inderal) is a non-selective beta-adrenergic blocker, or beta-blocker.
It works by blocking the effects of epinephrine on beta-receptors, primarily to reduce heart
rate and blood pressure.

Question 10
The drug clonidine is marketed under the trade names Catapres® and Kapvay®. This indicates