NUR 210 Principles of Pharmacology Exams
1–4 2026 | Galen College of Nursing |
Complete Study Guide | Verified Questions,
Answers & Rationales
NUR 210 PRINCIPLES OF PHARMACOLOGY EXAMS 1–4 2026
Galen College of Nursing | Complete Study Guide | Verified Questions,
Answers & Rationales
STUDY GUIDE OVERVIEW
• This comprehensive -question study guide covers all pharmacology content across
Exams 1–4, including drug classifications, pharmacokinetics, pharmacodynamics,
nursing considerations, and clinical applications essential for safe medication
administration and patient care.
• Use this material to strengthen your understanding of core pharmacology
principles through distributed practice—review questions in mixed order, focus on
rationales to build conceptual knowledge, and retake sections weekly until
achieving 85% or higher consistently.
EXAM QUESTIONS
1. A nurse is teaching a patient about the pharmacokinetic phase that
involves the movement of a drug from the site of administration into the
bloodstream. Which term best describes this phase?
A) Metabolism
B) Absorption
C) Distribution
D) Elimination
E) Excretion
,✓ CORRECT ANSWER: B) Absorption
Absorption is the phase of pharmacokinetics where a drug moves from the site of
administration into the bloodstream. This process varies based on route of
administration (IV, oral, IM, topical). Metabolism describes drug breakdown,
distribution is movement throughout the body, and elimination/excretion involve
removal from the body.
2. A 65-year-old patient with decreased renal function is prescribed a
medication. The nurse understands that this patient is at increased risk for:
A) Increased drug absorption
B) Drug accumulation and toxicity
C) Increased drug metabolism
D) Decreased drug effectiveness
E) Enhanced elimination
✓ CORRECT ANSWER: B) Drug accumulation and toxicity
Decreased renal function impairs the kidneys' ability to eliminate drugs, leading to
drug accumulation in the body and potential toxicity. The nurse must monitor for
signs of toxicity and may recommend dose adjustments. Renal function does not
increase absorption, metabolism, or elimination.
3. Which phase of pharmacokinetics involves the chemical transformation of
a drug into a metabolite, primarily occurring in the liver?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
E) Activation
,✓ CORRECT ANSWER: C) Metabolism
Metabolism (also called biotransformation) is the phase where the drug is
chemically altered, usually by the liver through enzymatic processes. This converts
the drug into metabolites that may be active, inactive, or toxic. This process makes
drugs more water-soluble for elimination.
4. A patient takes a medication with a half-life of 4 hours. If the initial dose
was 200 mg, how much drug remains in the body after 12 hours?
A) 200 mg
B) 100 mg
C) 50 mg
D) 25 mg
E) 12.5 mg
✓ CORRECT ANSWER: D) 25 mg
Half-life is the time required for the plasma concentration of a drug to decrease by
50%. After 4 hours (1 half-life), 100 mg remains. After 8 hours (2 half-lives), 50 mg
remains. After 12 hours (3 half-lives), 25 mg remains. This is calculated as 200 ÷ 2 ÷
2 ÷ 2 = 25 mg.
5. A nurse recognizes that the therapeutic range of a medication refers to:
A) The maximum dose that can be safely administered
B) The plasma concentration between minimum effective and minimum toxic levels
C) The time it takes for drug action to begin
D) The percentage of drug that is protein-bound
E) The route of administration that produces best results
, ✓ CORRECT ANSWER: B) The plasma concentration between minimum
effective and minimum toxic levels
The therapeutic range (therapeutic window) is the plasma drug concentration that
produces the desired therapeutic effect without causing toxicity. Drug levels below
this range are ineffective; levels above cause toxicity. This concept is crucial for
monitoring drugs with narrow therapeutic ranges like digoxin or theophylline.
6. Which route of drug administration provides the most rapid onset of action
and bypasses first-pass metabolism?
A) Oral
B) Sublingual
C) Intravenous
D) Intramuscular
E) Transdermal
✓ CORRECT ANSWER: C) Intravenous
Intravenous (IV) administration provides the most rapid onset because the drug
enters directly into the bloodstream, achieving immediate therapeutic levels and
bypassing first-pass hepatic metabolism. This route allows precise dosing and
control. Sublingual also bypasses first-pass but has slower onset than IV.
7. A patient on long-term corticosteroid therapy is being discontinued from
the medication. The nurse understands the importance of tapering rather
than abrupt cessation because:
A) Sudden discontinuation increases the risk of infection
B) Tapering prevents rebound inflammation and adrenal insufficiency
C) Abrupt cessation causes immediate drug toxicity
D) Gradual reduction improves drug metabolism
1–4 2026 | Galen College of Nursing |
Complete Study Guide | Verified Questions,
Answers & Rationales
NUR 210 PRINCIPLES OF PHARMACOLOGY EXAMS 1–4 2026
Galen College of Nursing | Complete Study Guide | Verified Questions,
Answers & Rationales
STUDY GUIDE OVERVIEW
• This comprehensive -question study guide covers all pharmacology content across
Exams 1–4, including drug classifications, pharmacokinetics, pharmacodynamics,
nursing considerations, and clinical applications essential for safe medication
administration and patient care.
• Use this material to strengthen your understanding of core pharmacology
principles through distributed practice—review questions in mixed order, focus on
rationales to build conceptual knowledge, and retake sections weekly until
achieving 85% or higher consistently.
EXAM QUESTIONS
1. A nurse is teaching a patient about the pharmacokinetic phase that
involves the movement of a drug from the site of administration into the
bloodstream. Which term best describes this phase?
A) Metabolism
B) Absorption
C) Distribution
D) Elimination
E) Excretion
,✓ CORRECT ANSWER: B) Absorption
Absorption is the phase of pharmacokinetics where a drug moves from the site of
administration into the bloodstream. This process varies based on route of
administration (IV, oral, IM, topical). Metabolism describes drug breakdown,
distribution is movement throughout the body, and elimination/excretion involve
removal from the body.
2. A 65-year-old patient with decreased renal function is prescribed a
medication. The nurse understands that this patient is at increased risk for:
A) Increased drug absorption
B) Drug accumulation and toxicity
C) Increased drug metabolism
D) Decreased drug effectiveness
E) Enhanced elimination
✓ CORRECT ANSWER: B) Drug accumulation and toxicity
Decreased renal function impairs the kidneys' ability to eliminate drugs, leading to
drug accumulation in the body and potential toxicity. The nurse must monitor for
signs of toxicity and may recommend dose adjustments. Renal function does not
increase absorption, metabolism, or elimination.
3. Which phase of pharmacokinetics involves the chemical transformation of
a drug into a metabolite, primarily occurring in the liver?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
E) Activation
,✓ CORRECT ANSWER: C) Metabolism
Metabolism (also called biotransformation) is the phase where the drug is
chemically altered, usually by the liver through enzymatic processes. This converts
the drug into metabolites that may be active, inactive, or toxic. This process makes
drugs more water-soluble for elimination.
4. A patient takes a medication with a half-life of 4 hours. If the initial dose
was 200 mg, how much drug remains in the body after 12 hours?
A) 200 mg
B) 100 mg
C) 50 mg
D) 25 mg
E) 12.5 mg
✓ CORRECT ANSWER: D) 25 mg
Half-life is the time required for the plasma concentration of a drug to decrease by
50%. After 4 hours (1 half-life), 100 mg remains. After 8 hours (2 half-lives), 50 mg
remains. After 12 hours (3 half-lives), 25 mg remains. This is calculated as 200 ÷ 2 ÷
2 ÷ 2 = 25 mg.
5. A nurse recognizes that the therapeutic range of a medication refers to:
A) The maximum dose that can be safely administered
B) The plasma concentration between minimum effective and minimum toxic levels
C) The time it takes for drug action to begin
D) The percentage of drug that is protein-bound
E) The route of administration that produces best results
, ✓ CORRECT ANSWER: B) The plasma concentration between minimum
effective and minimum toxic levels
The therapeutic range (therapeutic window) is the plasma drug concentration that
produces the desired therapeutic effect without causing toxicity. Drug levels below
this range are ineffective; levels above cause toxicity. This concept is crucial for
monitoring drugs with narrow therapeutic ranges like digoxin or theophylline.
6. Which route of drug administration provides the most rapid onset of action
and bypasses first-pass metabolism?
A) Oral
B) Sublingual
C) Intravenous
D) Intramuscular
E) Transdermal
✓ CORRECT ANSWER: C) Intravenous
Intravenous (IV) administration provides the most rapid onset because the drug
enters directly into the bloodstream, achieving immediate therapeutic levels and
bypassing first-pass hepatic metabolism. This route allows precise dosing and
control. Sublingual also bypasses first-pass but has slower onset than IV.
7. A patient on long-term corticosteroid therapy is being discontinued from
the medication. The nurse understands the importance of tapering rather
than abrupt cessation because:
A) Sudden discontinuation increases the risk of infection
B) Tapering prevents rebound inflammation and adrenal insufficiency
C) Abrupt cessation causes immediate drug toxicity
D) Gradual reduction improves drug metabolism
