NUR 210 Exams 1, 2 & 3 Prep / Nur 210
Principles of Pharmacology Exam 1-3
Latest Practice Test Questions and
Correct Answers Graded A+
EXAM 1: FOUNDATIONAL PRINCIPLES OF PHARMACOLOGY
Pharmacokinetics, Pharmacodynamics, and Core Concepts
Question 1
Pharmacokinetics is defined as:
A) What the drug does to the body
B) The study of drug interactions
C) What the body does to the drug
D) The study of drug toxicity
Answer: C
Rationale: Pharmacokinetics describes what the body does to the drug, including absorption,
distribution, metabolism, and excretion (ADME). Pharmacodynamics describes what the drug
does to the body .
Question 2
Pharmacodynamics is defined as:
A) What the body does to the drug
B) The movement of a drug through the body
C) What the drug does to the body
D) The elimination of a drug from the body
Answer: C
,Rationale: Pharmacodynamics is the study of the biochemical and physiological effects of drugs
on the body, including the mechanism of action and the drug's therapeutic and adverse effects .
Question 3
The nurse understands that the pharmaceutic phase of drug action involves:
A) Absorption of the drug into the bloodstream
B) Dissolution of the drug in the gastrointestinal tract
C) Distribution of the drug to target tissues
D) Excretion of the drug via the kidneys
Answer: B
Rationale: The pharmaceutic phase is the first phase, where the solid drug dissolves into a
liquid so it can be absorbed. Most oral absorption occurs in the small intestine .
Question 4
A patient asks the nurse, "What does 'first-pass effect' mean?" The best response is:
A) "The drug is absorbed faster when taken on an empty stomach."
B) "The drug is metabolized in the liver before reaching systemic circulation, reducing its
bioavailability."
C) "The drug is excreted unchanged by the kidneys."
D) "The drug binds to plasma proteins and becomes inactive."
Answer: B
Rationale: First-pass effect refers to the metabolism of an oral drug by the liver before it reaches
systemic circulation, which reduces the amount of active drug available .
Question 5
A medication given by which route has 100% bioavailability?
A) Oral
B) Sublingual
C) Intravenous
D) Intramuscular
,Answer: C
Rationale: Intravenous administration places the drug directly into the bloodstream, bypassing
absorption and first-pass metabolism, resulting in 100% bioavailability .
Question 6
Which term best describes "the time it takes for a drug to begin producing a therapeutic
effect"?
A) Peak effect
B) Onset of action
C) Duration of action
D) Half-life
Answer: B
Rationale: Onset of action is the time it takes for a drug to reach the minimum effective
concentration (MEC) and begin to produce a therapeutic effect .
Question 7
The ratio between the toxic dose and the therapeutic dose of a drug is called the:
A) Therapeutic index
B) Half-life
C) Bioavailability
D) Loading dose
Answer: A
Rationale: The therapeutic index (TI) is the ratio between the toxic dose and the therapeutic
dose. A narrow TI indicates a higher risk of toxicity and requires close monitoring (e.g., lithium,
digoxin, warfarin) .
Question 8
The percentage of an administered drug that reaches the systemic circulation and is available to
produce a therapeutic effect is called:
, A) Half-life
B) Bioavailability
C) Therapeutic index
D) Peak effect
Answer: B
Rationale: Bioavailability is the percentage of an administered drug that reaches the systemic
circulation. Oral drugs may have reduced bioavailability due to first-pass metabolism in the
liver .
Question 9
A drug that binds to a receptor and produces a response is called a(n):
A) Antagonist
B) Agonist
C) Partial agonist
D) Competitive antagonist
Answer: B
Rationale: An agonist activates a receptor and produces a biological response. An antagonist
blocks the receptor and produces no response .
Question 10
A drug that binds to a receptor and blocks the response, preventing the agonist from producing
an effect, is called a(n):
A) Agonist
B) Partial agonist
C) Antagonist
D) Inverse agonist
Answer: C
Rationale: An antagonist binds to a receptor and blocks the response, preventing the agonist
from producing an effect. Antagonists have no intrinsic activity of their own .
Principles of Pharmacology Exam 1-3
Latest Practice Test Questions and
Correct Answers Graded A+
EXAM 1: FOUNDATIONAL PRINCIPLES OF PHARMACOLOGY
Pharmacokinetics, Pharmacodynamics, and Core Concepts
Question 1
Pharmacokinetics is defined as:
A) What the drug does to the body
B) The study of drug interactions
C) What the body does to the drug
D) The study of drug toxicity
Answer: C
Rationale: Pharmacokinetics describes what the body does to the drug, including absorption,
distribution, metabolism, and excretion (ADME). Pharmacodynamics describes what the drug
does to the body .
Question 2
Pharmacodynamics is defined as:
A) What the body does to the drug
B) The movement of a drug through the body
C) What the drug does to the body
D) The elimination of a drug from the body
Answer: C
,Rationale: Pharmacodynamics is the study of the biochemical and physiological effects of drugs
on the body, including the mechanism of action and the drug's therapeutic and adverse effects .
Question 3
The nurse understands that the pharmaceutic phase of drug action involves:
A) Absorption of the drug into the bloodstream
B) Dissolution of the drug in the gastrointestinal tract
C) Distribution of the drug to target tissues
D) Excretion of the drug via the kidneys
Answer: B
Rationale: The pharmaceutic phase is the first phase, where the solid drug dissolves into a
liquid so it can be absorbed. Most oral absorption occurs in the small intestine .
Question 4
A patient asks the nurse, "What does 'first-pass effect' mean?" The best response is:
A) "The drug is absorbed faster when taken on an empty stomach."
B) "The drug is metabolized in the liver before reaching systemic circulation, reducing its
bioavailability."
C) "The drug is excreted unchanged by the kidneys."
D) "The drug binds to plasma proteins and becomes inactive."
Answer: B
Rationale: First-pass effect refers to the metabolism of an oral drug by the liver before it reaches
systemic circulation, which reduces the amount of active drug available .
Question 5
A medication given by which route has 100% bioavailability?
A) Oral
B) Sublingual
C) Intravenous
D) Intramuscular
,Answer: C
Rationale: Intravenous administration places the drug directly into the bloodstream, bypassing
absorption and first-pass metabolism, resulting in 100% bioavailability .
Question 6
Which term best describes "the time it takes for a drug to begin producing a therapeutic
effect"?
A) Peak effect
B) Onset of action
C) Duration of action
D) Half-life
Answer: B
Rationale: Onset of action is the time it takes for a drug to reach the minimum effective
concentration (MEC) and begin to produce a therapeutic effect .
Question 7
The ratio between the toxic dose and the therapeutic dose of a drug is called the:
A) Therapeutic index
B) Half-life
C) Bioavailability
D) Loading dose
Answer: A
Rationale: The therapeutic index (TI) is the ratio between the toxic dose and the therapeutic
dose. A narrow TI indicates a higher risk of toxicity and requires close monitoring (e.g., lithium,
digoxin, warfarin) .
Question 8
The percentage of an administered drug that reaches the systemic circulation and is available to
produce a therapeutic effect is called:
, A) Half-life
B) Bioavailability
C) Therapeutic index
D) Peak effect
Answer: B
Rationale: Bioavailability is the percentage of an administered drug that reaches the systemic
circulation. Oral drugs may have reduced bioavailability due to first-pass metabolism in the
liver .
Question 9
A drug that binds to a receptor and produces a response is called a(n):
A) Antagonist
B) Agonist
C) Partial agonist
D) Competitive antagonist
Answer: B
Rationale: An agonist activates a receptor and produces a biological response. An antagonist
blocks the receptor and produces no response .
Question 10
A drug that binds to a receptor and blocks the response, preventing the agonist from producing
an effect, is called a(n):
A) Agonist
B) Partial agonist
C) Antagonist
D) Inverse agonist
Answer: C
Rationale: An antagonist binds to a receptor and blocks the response, preventing the agonist
from producing an effect. Antagonists have no intrinsic activity of their own .
