,NSG 124 Pharmacology Exam 1 | Herzing
University | Latest 2026/2027 Actual(PDF)
1. A client prescribed a medication that is 95% bound to plasma proteins is simultaneously started on
a second highly protein-bound drug. Which effect should the nurse anticipate?
A) Increased excretion of both medications
B) Displacement of the first drug, leading to increased free drug levels
C) Decreased absorption of the second drug
D) Enhanced metabolism of both medications
Correct Answer: Displacement of the first drug, leading to increased free drug levels
Rationale: When two highly protein-bound drugs are administered together, they compete for binding
sites on plasma proteins. Displacement results in increased free (unbound) drug levels, which can
intensify pharmacological effects and toxicity. The nurse should monitor for adverse effects, as the
therapeutic response may be potentiated.
2. A nurse is preparing to administer an oral medication that undergoes extensive first-pass
metabolism. Which action is most appropriate to ensure therapeutic effectiveness?
A) Administer the medication with a high-fat meal
B) Administer the medication via an alternative route
C) Double the prescribed dose without provider consultation
D) Crush the medication to enhance absorption
Correct Answer: Administer the medication via an alternative route
Rationale: First-pass metabolism occurs when a drug is absorbed from the GI tract and transported to
the liver via the portal circulation, where a significant portion may be metabolized before reaching
systemic circulation. Alternative routes such as sublingual, transdermal, or intravenous bypass the
first-pass effect, increasing bioavailability. The nurse should consult the provider before changing
routes or dosages.
,3. A client with renal impairment is prescribed a medication that is primarily excreted by the kidneys.
The nurse should expect which adjustment to the medication regimen?
A) A higher initial dose to achieve therapeutic effect
B) An extended dosing interval or reduced dose
C) No change in dosing, as renal function does not affect excretion
D) Administration with a full glass of water to enhance excretion
Correct Answer: An extended dosing interval or reduced dose
Rationale: When a drug is primarily excreted by the kidneys and the client has renal impairment, drug
elimination is slowed, leading to accumulation and potential toxicity. Dose reduction or extended
dosing intervals are necessary to maintain safe therapeutic levels. The nurse should monitor renal
function tests and report changes to the provider.
4. A nurse is teaching a client about the difference between a generic drug name and a trade (brand)
name. Which statement by the client indicates correct understanding?
A) "There can be multiple generic names for the same drug, but only one trade name."
B) "There is only one generic name per drug, but there may be multiple trade names."
C) "Generic drugs are always less effective than brand-name drugs."
D) "The trade name is the chemical name of the drug."
Correct Answer: "There is only one generic name per drug, but there may be multiple trade names."
Rationale: The generic name is the nonproprietary, official name of a drug (e.g., acetaminophen). The
trade name is the brand name given by the manufacturer (e.g., Tylenol). There is only one generic
name per drug, but there may be multiple trade names. Generic drugs are required to be
bioequivalent and are not inherently less effective.
5. A client is receiving an IV medication that has a half-life of 4 hours. Approximately how long will it
take for the drug to be eliminated from the body?
A) 4 hours
B) 8 hours
, C) 20 hours
D) 40 hours
Correct Answer: 20 hours
Rationale: It takes approximately 4 to 5 half-lives for a drug to be considered eliminated from the
body. With a half-life of 4 hours, elimination would occur in approximately 16 to 20 hours. The half-
life represents the time required for the serum concentration of a drug to decrease by 50%.
6. A nurse is evaluating a client's response to a newly prescribed antihypertensive medication. Which
statement best describes the goal of drug therapy?
A) To cure the underlying disease
B) To produce maximum benefit with minimum harm
C) To eliminate all adverse effects
D) To reduce the cost of healthcare
Correct Answer: To produce maximum benefit with minimum harm
Rationale: The goal of drug therapy is to produce maximum benefit with minimum harm. This involves
employing drugs in such a way as to maximize therapeutic responses while preventing or minimizing
adverse reactions and interactions. Complete elimination of adverse effects is unrealistic, and cure is
not always possible.
7. A nurse is administering a medication that acts as a competitive antagonist at a receptor site. Which
statement best describes this mechanism of action?
A) The drug binds to the receptor and activates it, producing a response
B) The drug binds to the receptor and blocks the agonist from binding
C) The drug binds to an alternative site and modifies receptor function
D) The drug increases the production of the endogenous agonist
Correct Answer: The drug binds to the receptor and blocks the agonist from binding
University | Latest 2026/2027 Actual(PDF)
1. A client prescribed a medication that is 95% bound to plasma proteins is simultaneously started on
a second highly protein-bound drug. Which effect should the nurse anticipate?
A) Increased excretion of both medications
B) Displacement of the first drug, leading to increased free drug levels
C) Decreased absorption of the second drug
D) Enhanced metabolism of both medications
Correct Answer: Displacement of the first drug, leading to increased free drug levels
Rationale: When two highly protein-bound drugs are administered together, they compete for binding
sites on plasma proteins. Displacement results in increased free (unbound) drug levels, which can
intensify pharmacological effects and toxicity. The nurse should monitor for adverse effects, as the
therapeutic response may be potentiated.
2. A nurse is preparing to administer an oral medication that undergoes extensive first-pass
metabolism. Which action is most appropriate to ensure therapeutic effectiveness?
A) Administer the medication with a high-fat meal
B) Administer the medication via an alternative route
C) Double the prescribed dose without provider consultation
D) Crush the medication to enhance absorption
Correct Answer: Administer the medication via an alternative route
Rationale: First-pass metabolism occurs when a drug is absorbed from the GI tract and transported to
the liver via the portal circulation, where a significant portion may be metabolized before reaching
systemic circulation. Alternative routes such as sublingual, transdermal, or intravenous bypass the
first-pass effect, increasing bioavailability. The nurse should consult the provider before changing
routes or dosages.
,3. A client with renal impairment is prescribed a medication that is primarily excreted by the kidneys.
The nurse should expect which adjustment to the medication regimen?
A) A higher initial dose to achieve therapeutic effect
B) An extended dosing interval or reduced dose
C) No change in dosing, as renal function does not affect excretion
D) Administration with a full glass of water to enhance excretion
Correct Answer: An extended dosing interval or reduced dose
Rationale: When a drug is primarily excreted by the kidneys and the client has renal impairment, drug
elimination is slowed, leading to accumulation and potential toxicity. Dose reduction or extended
dosing intervals are necessary to maintain safe therapeutic levels. The nurse should monitor renal
function tests and report changes to the provider.
4. A nurse is teaching a client about the difference between a generic drug name and a trade (brand)
name. Which statement by the client indicates correct understanding?
A) "There can be multiple generic names for the same drug, but only one trade name."
B) "There is only one generic name per drug, but there may be multiple trade names."
C) "Generic drugs are always less effective than brand-name drugs."
D) "The trade name is the chemical name of the drug."
Correct Answer: "There is only one generic name per drug, but there may be multiple trade names."
Rationale: The generic name is the nonproprietary, official name of a drug (e.g., acetaminophen). The
trade name is the brand name given by the manufacturer (e.g., Tylenol). There is only one generic
name per drug, but there may be multiple trade names. Generic drugs are required to be
bioequivalent and are not inherently less effective.
5. A client is receiving an IV medication that has a half-life of 4 hours. Approximately how long will it
take for the drug to be eliminated from the body?
A) 4 hours
B) 8 hours
, C) 20 hours
D) 40 hours
Correct Answer: 20 hours
Rationale: It takes approximately 4 to 5 half-lives for a drug to be considered eliminated from the
body. With a half-life of 4 hours, elimination would occur in approximately 16 to 20 hours. The half-
life represents the time required for the serum concentration of a drug to decrease by 50%.
6. A nurse is evaluating a client's response to a newly prescribed antihypertensive medication. Which
statement best describes the goal of drug therapy?
A) To cure the underlying disease
B) To produce maximum benefit with minimum harm
C) To eliminate all adverse effects
D) To reduce the cost of healthcare
Correct Answer: To produce maximum benefit with minimum harm
Rationale: The goal of drug therapy is to produce maximum benefit with minimum harm. This involves
employing drugs in such a way as to maximize therapeutic responses while preventing or minimizing
adverse reactions and interactions. Complete elimination of adverse effects is unrealistic, and cure is
not always possible.
7. A nurse is administering a medication that acts as a competitive antagonist at a receptor site. Which
statement best describes this mechanism of action?
A) The drug binds to the receptor and activates it, producing a response
B) The drug binds to the receptor and blocks the agonist from binding
C) The drug binds to an alternative site and modifies receptor function
D) The drug increases the production of the endogenous agonist
Correct Answer: The drug binds to the receptor and blocks the agonist from binding
