NUR210 / NUR 210 EXAM 2 (LATEST 2025 /
2026): PRINCIPLES OF PHARMACOLOGY - GALEN
TESTED QUESTIONS WITH REVISED CORRECT
ANSWERS, (A+ – COMPREHENSIVE QUESTIONS
AND ANSWERS | VERIFIED AND WELLDETAILED
ANSWERS | DETAILED EXPLANATIONS AND
RATIONALES | COMPLETE EXAM PREPARATION
STUDY GUIDE | PRACTICE QUESTIONS | LATEST
EXAM UPDATE
Question 1
Which statement best describes pharmacokinetics?
A. The study of how drugs produce their therapeutic effects
B. The study of how the body absorbs, distributes, metabolizes, and excretes drugs
C. The study of adverse reactions caused by medications
D. The study of drug classification systems
Correct Answer: B. The study of how the body absorbs, distributes, metabolizes, and
excretes drugs
Explanation: Pharmacokinetics describes what the body does to a drug through
absorption, distribution, metabolism, and excretion. Pharmacodynamics focuses primarily
on what the drug does to the body.
Question 2
Which pharmacokinetic process involves movement of a medication from its site of
administration into the bloodstream?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A. Absorption
,Explanation: Absorption is the movement of a drug from its administration site into
systemic circulation. The route of administration can significantly affect the rate and
extent of absorption.
Question 3
A medication administered intravenously generally has which characteristic?
A. Delayed absorption through the gastrointestinal tract
B. First-pass metabolism before reaching systemic circulation
C. Bioavailability of approximately 100%
D. Slower onset than an oral medication
Correct Answer: C. Bioavailability of approximately 100%
Explanation: Intravenous medications enter the systemic circulation directly, so their
bioavailability is essentially 100%. They also generally produce a faster onset than
medications administered by oral routes.
Question 4
Which organ is primarily responsible for the metabolism of most medications?
A. Heart
B. Liver
C. Spleen
D. Pancreas
Correct Answer: B. Liver
Explanation: The liver is the major site of drug metabolism. Hepatic enzymes chemically
modify many medications so they can be more readily eliminated from the body.
Question 5
Which organ is primarily responsible for renal excretion of many medications and their
metabolites?
A. Lungs
B. Liver
C. Kidneys
D. Stomach
Correct Answer: C. Kidneys
Explanation: The kidneys eliminate many drugs and metabolites through urine. Impaired
renal function can therefore cause certain medications to accumulate and increase the risk
of toxicity.
,Question 6
What is the therapeutic index primarily used to describe?
A. The speed of drug absorption
B. The relationship between a drug’s effective and toxic doses
C. The route by which a medication is administered
D. The percentage of a drug excreted in urine
Correct Answer: B. The relationship between a drug’s effective and toxic doses
Explanation: The therapeutic index provides an indication of a drug’s safety margin. Drugs
with a narrow therapeutic index require particularly careful dosing and monitoring.
Question 7
A medication with a narrow therapeutic index requires which nursing consideration?
A. Administration without monitoring
B. Frequent assessment for therapeutic and toxic effects
C. Automatic doubling of missed doses
D. Avoidance of laboratory monitoring
Correct Answer: B. Frequent assessment for therapeutic and toxic effects
Explanation: Drugs with a narrow therapeutic index have a relatively small difference
between therapeutic and toxic concentrations. Careful dosing, monitoring, and laboratory
assessment may therefore be necessary.
Question 8
Which term describes the concentration of a drug required to produce a desired therapeutic
effect?
A. Potency
B. Toxicity
C. Antagonism
D. Allergy
Correct Answer: A. Potency
Explanation: Potency refers to the amount of drug required to produce a particular effect.
A more potent medication can produce a given effect at a lower dose than a less potent
medication.
Question 9
What is meant by drug efficacy?
, A. The amount of medication absorbed
B. The maximum effect a drug can produce
C. The speed at which the drug is eliminated
D. The probability of an allergic reaction
Correct Answer: B. The maximum effect a drug can produce
Explanation: Efficacy describes the maximum therapeutic response a drug can produce.
Potency and efficacy are related but represent different pharmacologic concepts.
Question 10
A patient asks why an oral medication may take longer to work than an intravenous
medication. Which response is most appropriate?
A. “Oral medications cannot enter the bloodstream.”
B. “Oral medications must be absorbed before reaching systemic circulation.”
C. “Intravenous medications are always more potent.”
D. “Oral medications are eliminated before absorption occurs.”
Correct Answer: B. “Oral medications must be absorbed before reaching systemic
circulation.”
Explanation: Oral medications must pass through the gastrointestinal tract and be
absorbed into the bloodstream. Intravenous medications bypass the absorption step by
entering circulation directly.
Question 11
Which medication route most directly bypasses first-pass hepatic metabolism?
A. Oral
B. Sublingual
C. Enteral feeding tube
D. Oral liquid
Correct Answer: B. Sublingual
Explanation: Sublingual medications are absorbed through oral mucous membranes
directly into systemic circulation, largely bypassing the gastrointestinal tract and first-pass
hepatic metabolism.
Question 12
What is the primary purpose of first-pass metabolism?
A. To increase intravenous drug concentration
B. To chemically modify an orally absorbed drug before it reaches systemic circulation
2026): PRINCIPLES OF PHARMACOLOGY - GALEN
TESTED QUESTIONS WITH REVISED CORRECT
ANSWERS, (A+ – COMPREHENSIVE QUESTIONS
AND ANSWERS | VERIFIED AND WELLDETAILED
ANSWERS | DETAILED EXPLANATIONS AND
RATIONALES | COMPLETE EXAM PREPARATION
STUDY GUIDE | PRACTICE QUESTIONS | LATEST
EXAM UPDATE
Question 1
Which statement best describes pharmacokinetics?
A. The study of how drugs produce their therapeutic effects
B. The study of how the body absorbs, distributes, metabolizes, and excretes drugs
C. The study of adverse reactions caused by medications
D. The study of drug classification systems
Correct Answer: B. The study of how the body absorbs, distributes, metabolizes, and
excretes drugs
Explanation: Pharmacokinetics describes what the body does to a drug through
absorption, distribution, metabolism, and excretion. Pharmacodynamics focuses primarily
on what the drug does to the body.
Question 2
Which pharmacokinetic process involves movement of a medication from its site of
administration into the bloodstream?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A. Absorption
,Explanation: Absorption is the movement of a drug from its administration site into
systemic circulation. The route of administration can significantly affect the rate and
extent of absorption.
Question 3
A medication administered intravenously generally has which characteristic?
A. Delayed absorption through the gastrointestinal tract
B. First-pass metabolism before reaching systemic circulation
C. Bioavailability of approximately 100%
D. Slower onset than an oral medication
Correct Answer: C. Bioavailability of approximately 100%
Explanation: Intravenous medications enter the systemic circulation directly, so their
bioavailability is essentially 100%. They also generally produce a faster onset than
medications administered by oral routes.
Question 4
Which organ is primarily responsible for the metabolism of most medications?
A. Heart
B. Liver
C. Spleen
D. Pancreas
Correct Answer: B. Liver
Explanation: The liver is the major site of drug metabolism. Hepatic enzymes chemically
modify many medications so they can be more readily eliminated from the body.
Question 5
Which organ is primarily responsible for renal excretion of many medications and their
metabolites?
A. Lungs
B. Liver
C. Kidneys
D. Stomach
Correct Answer: C. Kidneys
Explanation: The kidneys eliminate many drugs and metabolites through urine. Impaired
renal function can therefore cause certain medications to accumulate and increase the risk
of toxicity.
,Question 6
What is the therapeutic index primarily used to describe?
A. The speed of drug absorption
B. The relationship between a drug’s effective and toxic doses
C. The route by which a medication is administered
D. The percentage of a drug excreted in urine
Correct Answer: B. The relationship between a drug’s effective and toxic doses
Explanation: The therapeutic index provides an indication of a drug’s safety margin. Drugs
with a narrow therapeutic index require particularly careful dosing and monitoring.
Question 7
A medication with a narrow therapeutic index requires which nursing consideration?
A. Administration without monitoring
B. Frequent assessment for therapeutic and toxic effects
C. Automatic doubling of missed doses
D. Avoidance of laboratory monitoring
Correct Answer: B. Frequent assessment for therapeutic and toxic effects
Explanation: Drugs with a narrow therapeutic index have a relatively small difference
between therapeutic and toxic concentrations. Careful dosing, monitoring, and laboratory
assessment may therefore be necessary.
Question 8
Which term describes the concentration of a drug required to produce a desired therapeutic
effect?
A. Potency
B. Toxicity
C. Antagonism
D. Allergy
Correct Answer: A. Potency
Explanation: Potency refers to the amount of drug required to produce a particular effect.
A more potent medication can produce a given effect at a lower dose than a less potent
medication.
Question 9
What is meant by drug efficacy?
, A. The amount of medication absorbed
B. The maximum effect a drug can produce
C. The speed at which the drug is eliminated
D. The probability of an allergic reaction
Correct Answer: B. The maximum effect a drug can produce
Explanation: Efficacy describes the maximum therapeutic response a drug can produce.
Potency and efficacy are related but represent different pharmacologic concepts.
Question 10
A patient asks why an oral medication may take longer to work than an intravenous
medication. Which response is most appropriate?
A. “Oral medications cannot enter the bloodstream.”
B. “Oral medications must be absorbed before reaching systemic circulation.”
C. “Intravenous medications are always more potent.”
D. “Oral medications are eliminated before absorption occurs.”
Correct Answer: B. “Oral medications must be absorbed before reaching systemic
circulation.”
Explanation: Oral medications must pass through the gastrointestinal tract and be
absorbed into the bloodstream. Intravenous medications bypass the absorption step by
entering circulation directly.
Question 11
Which medication route most directly bypasses first-pass hepatic metabolism?
A. Oral
B. Sublingual
C. Enteral feeding tube
D. Oral liquid
Correct Answer: B. Sublingual
Explanation: Sublingual medications are absorbed through oral mucous membranes
directly into systemic circulation, largely bypassing the gastrointestinal tract and first-pass
hepatic metabolism.
Question 12
What is the primary purpose of first-pass metabolism?
A. To increase intravenous drug concentration
B. To chemically modify an orally absorbed drug before it reaches systemic circulation
