GALEN NUR 210 EXAM: Comprehensive Pharmacology
Principles
Advanced Nursing Pharmacology Examination
Total Questions: 150
Difficulty Level: Advanced/Mixed
Target Audience: Nursing Students (Galen College of Nursing)
Exam Duration: 3 Hours
Passing Score: 80% (120/150)
SECTION 1: PHARMACOKINETICS AND PHARMACODYNAMICS
(Questions 1-20)
1. The nurse is preparing to administer a medication that has a high first-pass effect. Which route of
administration would the nurse expect to be most effective for this medication?
A. Oral
B. Sublingual
C. Intravenous
D. Intramuscular
Correct Answer: C
Rationale: Intravenous administration bypasses the first-pass effect entirely because the drug is
delivered directly into systemic circulation, avoiding hepatic metabolism before reaching target tissues.
The first-pass effect significantly reduces the bioavailability of orally administered drugs as they pass
through the liver before entering systemic circulation. Sublingual and intramuscular routes also bypass
first-pass effect but not as completely as IV administration.
2. A patient with liver cirrhosis has been prescribed a medication that is extensively metabolized by
the liver. The nurse anticipates that the prescriber will:
A. Increase the dose to achieve therapeutic effect
B. Decrease the dose to prevent toxicity
C. Maintain the standard dose
D. Change the route of administration to topical
Correct Answer: B
Rationale: Liver cirrhosis impairs hepatic metabolism, leading to drug accumulation and increased risk
of toxicity. The prescriber should decrease the dose or lengthen the dosing interval to prevent adverse
,effects. The nurse should monitor for signs of drug toxicity and report any changes in the patient's
condition.
3. The nurse is teaching a patient about a newly prescribed medication that is highly protein-
bound. Which statement by the patient indicates understanding of the teaching?
A. "I can take this medication with any other medication since it's safe"
B. "I should avoid taking other medications that might compete for protein binding sites"
C. "The medication will work faster if I take it on an empty stomach"
D. "I need to take this medication with high-protein foods"
Correct Answer: B
Rationale: Highly protein-bound drugs compete for binding sites on plasma proteins. When two
highly protein-bound drugs are administered together, they can displace each other, leading to
increased free (active) drug levels and potential toxicity. Patients should be educated about this
interaction risk.
4. The nurse understands that the therapeutic index of a medication provides information about:
A. The time required for the drug to reach peak concentration
B. The margin of safety between therapeutic and toxic doses
C. The rate at which the drug is eliminated from the body
D. The percentage of drug that reaches systemic circulation
Correct Answer: B
Rationale: The therapeutic index (TI) is the ratio of the toxic dose to the therapeutic dose (TD50/ED50).
A narrow TI indicates a small margin of safety, requiring careful monitoring of drug levels and adverse
effects. Drugs with narrow therapeutic indices (e.g., digoxin, lithium, phenytoin) require therapeutic
drug monitoring.
5. A patient is prescribed a medication with a half-life of 24 hours. The nurse correctly determines
that the medication will reach steady state in approximately:
A. 24 hours (1 half-life)
B. 48 hours (2 half-lives)
C. 120 hours (5 half-lives)
D. 240 hours (10 half-lives)
Correct Answer: C
Rationale: Steady state is typically achieved after approximately 4-5 half-lives of drug administration.
,With a 24-hour half-life, steady state would be reached in approximately 120 hours (5 days). This is
when drug administration and elimination are balanced, resulting in consistent plasma drug levels.
6. The nurse is reviewing the concept of drug-receptor interactions. A drug that binds to a receptor
and produces a response is called a(n):
A. Antagonist
B. Agonist
C. Partial agonist
D. Competitive inhibitor
Correct Answer: B
Rationale: An agonist binds to a receptor and activates it, producing a biological response. A full
agonist produces maximal response when all receptors are occupied. An antagonist binds to a
receptor but does not activate it, instead blocking the receptor and preventing other molecules from
binding. A partial agonist produces a weaker response than a full agonist even at full receptor
occupancy.
7. The nurse is caring for a patient who develops tolerance to a medication. Which statement best
describes this phenomenon?
A. The patient experiences an allergic reaction to the medication
B. The patient requires increasingly higher doses to achieve the same effect
C. The patient develops dependence on the medication
D. The patient experiences withdrawal symptoms when the medication is stopped
Correct Answer: B
Rationale: Tolerance is a phenomenon where repeated administration of a drug results in diminished
response, requiring increased doses to achieve the same therapeutic effect. This can occur with
opioids, benzodiazepines, and many other medications. It does not indicate addiction or dependence,
though these may co-occur.
8. The nurse is preparing to administer a medication and notes that the patient has a history of
anaphylaxis to penicillin. Which action should the nurse take?
A. Administer the medication and monitor for reaction
B. Hold the medication and notify the healthcare provider
C. Administer the medication with an antihistamine
D. Administer a test dose first
, Correct Answer: B
Rationale: A history of anaphylaxis to penicillin is an absolute contraindication to penicillin
administration due to the risk of cross-reactivity with other beta-lactam antibiotics. The nurse should
hold the medication, notify the healthcare provider, and document the allergy in the patient's record.
9. The nurse is evaluating a patient's understanding of drug administration. Which statement
indicates the patient understands the concept of bioavailability?
A. "Bioavailability is the amount of drug that reaches the bloodstream unchanged"
B. "Bioavailability is how fast the drug works"
C. "Bioavailability is the drug's ability to cause side effects"
D. "Bioavailability is the drug's strength compared to other drugs"
Correct Answer: A
Rationale: Bioavailability is the fraction of an administered dose of drug that reaches systemic
circulation unchanged. Factors affecting bioavailability include first-pass metabolism, drug formulation,
route of administration, and patient-specific factors.
10. A patient is prescribed a medication that is a weak acid. The nurse understands that this
medication will be better absorbed in which part of the gastrointestinal tract?
A. Stomach (acidic environment)
B. Small intestine (alkaline environment)
C. Colon (neutral environment)
D. Mouth (slightly alkaline environment)
Correct Answer: A
Rationale: Weak acids are better absorbed in acidic environments because they are non-ionized and
lipid-soluble, allowing them to cross cell membranes more easily. The stomach has a pH of
approximately 1-3, making it ideal for weak acid absorption. Weak bases are better absorbed in
alkaline environments like the small intestine.
11. The nurse is administering medications to a patient with renal impairment. Which
pharmacokinetic phase is most likely to be affected?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Principles
Advanced Nursing Pharmacology Examination
Total Questions: 150
Difficulty Level: Advanced/Mixed
Target Audience: Nursing Students (Galen College of Nursing)
Exam Duration: 3 Hours
Passing Score: 80% (120/150)
SECTION 1: PHARMACOKINETICS AND PHARMACODYNAMICS
(Questions 1-20)
1. The nurse is preparing to administer a medication that has a high first-pass effect. Which route of
administration would the nurse expect to be most effective for this medication?
A. Oral
B. Sublingual
C. Intravenous
D. Intramuscular
Correct Answer: C
Rationale: Intravenous administration bypasses the first-pass effect entirely because the drug is
delivered directly into systemic circulation, avoiding hepatic metabolism before reaching target tissues.
The first-pass effect significantly reduces the bioavailability of orally administered drugs as they pass
through the liver before entering systemic circulation. Sublingual and intramuscular routes also bypass
first-pass effect but not as completely as IV administration.
2. A patient with liver cirrhosis has been prescribed a medication that is extensively metabolized by
the liver. The nurse anticipates that the prescriber will:
A. Increase the dose to achieve therapeutic effect
B. Decrease the dose to prevent toxicity
C. Maintain the standard dose
D. Change the route of administration to topical
Correct Answer: B
Rationale: Liver cirrhosis impairs hepatic metabolism, leading to drug accumulation and increased risk
of toxicity. The prescriber should decrease the dose or lengthen the dosing interval to prevent adverse
,effects. The nurse should monitor for signs of drug toxicity and report any changes in the patient's
condition.
3. The nurse is teaching a patient about a newly prescribed medication that is highly protein-
bound. Which statement by the patient indicates understanding of the teaching?
A. "I can take this medication with any other medication since it's safe"
B. "I should avoid taking other medications that might compete for protein binding sites"
C. "The medication will work faster if I take it on an empty stomach"
D. "I need to take this medication with high-protein foods"
Correct Answer: B
Rationale: Highly protein-bound drugs compete for binding sites on plasma proteins. When two
highly protein-bound drugs are administered together, they can displace each other, leading to
increased free (active) drug levels and potential toxicity. Patients should be educated about this
interaction risk.
4. The nurse understands that the therapeutic index of a medication provides information about:
A. The time required for the drug to reach peak concentration
B. The margin of safety between therapeutic and toxic doses
C. The rate at which the drug is eliminated from the body
D. The percentage of drug that reaches systemic circulation
Correct Answer: B
Rationale: The therapeutic index (TI) is the ratio of the toxic dose to the therapeutic dose (TD50/ED50).
A narrow TI indicates a small margin of safety, requiring careful monitoring of drug levels and adverse
effects. Drugs with narrow therapeutic indices (e.g., digoxin, lithium, phenytoin) require therapeutic
drug monitoring.
5. A patient is prescribed a medication with a half-life of 24 hours. The nurse correctly determines
that the medication will reach steady state in approximately:
A. 24 hours (1 half-life)
B. 48 hours (2 half-lives)
C. 120 hours (5 half-lives)
D. 240 hours (10 half-lives)
Correct Answer: C
Rationale: Steady state is typically achieved after approximately 4-5 half-lives of drug administration.
,With a 24-hour half-life, steady state would be reached in approximately 120 hours (5 days). This is
when drug administration and elimination are balanced, resulting in consistent plasma drug levels.
6. The nurse is reviewing the concept of drug-receptor interactions. A drug that binds to a receptor
and produces a response is called a(n):
A. Antagonist
B. Agonist
C. Partial agonist
D. Competitive inhibitor
Correct Answer: B
Rationale: An agonist binds to a receptor and activates it, producing a biological response. A full
agonist produces maximal response when all receptors are occupied. An antagonist binds to a
receptor but does not activate it, instead blocking the receptor and preventing other molecules from
binding. A partial agonist produces a weaker response than a full agonist even at full receptor
occupancy.
7. The nurse is caring for a patient who develops tolerance to a medication. Which statement best
describes this phenomenon?
A. The patient experiences an allergic reaction to the medication
B. The patient requires increasingly higher doses to achieve the same effect
C. The patient develops dependence on the medication
D. The patient experiences withdrawal symptoms when the medication is stopped
Correct Answer: B
Rationale: Tolerance is a phenomenon where repeated administration of a drug results in diminished
response, requiring increased doses to achieve the same therapeutic effect. This can occur with
opioids, benzodiazepines, and many other medications. It does not indicate addiction or dependence,
though these may co-occur.
8. The nurse is preparing to administer a medication and notes that the patient has a history of
anaphylaxis to penicillin. Which action should the nurse take?
A. Administer the medication and monitor for reaction
B. Hold the medication and notify the healthcare provider
C. Administer the medication with an antihistamine
D. Administer a test dose first
, Correct Answer: B
Rationale: A history of anaphylaxis to penicillin is an absolute contraindication to penicillin
administration due to the risk of cross-reactivity with other beta-lactam antibiotics. The nurse should
hold the medication, notify the healthcare provider, and document the allergy in the patient's record.
9. The nurse is evaluating a patient's understanding of drug administration. Which statement
indicates the patient understands the concept of bioavailability?
A. "Bioavailability is the amount of drug that reaches the bloodstream unchanged"
B. "Bioavailability is how fast the drug works"
C. "Bioavailability is the drug's ability to cause side effects"
D. "Bioavailability is the drug's strength compared to other drugs"
Correct Answer: A
Rationale: Bioavailability is the fraction of an administered dose of drug that reaches systemic
circulation unchanged. Factors affecting bioavailability include first-pass metabolism, drug formulation,
route of administration, and patient-specific factors.
10. A patient is prescribed a medication that is a weak acid. The nurse understands that this
medication will be better absorbed in which part of the gastrointestinal tract?
A. Stomach (acidic environment)
B. Small intestine (alkaline environment)
C. Colon (neutral environment)
D. Mouth (slightly alkaline environment)
Correct Answer: A
Rationale: Weak acids are better absorbed in acidic environments because they are non-ionized and
lipid-soluble, allowing them to cross cell membranes more easily. The stomach has a pH of
approximately 1-3, making it ideal for weak acid absorption. Weak bases are better absorbed in
alkaline environments like the small intestine.
11. The nurse is administering medications to a patient with renal impairment. Which
pharmacokinetic phase is most likely to be affected?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
