Lehne Pharmacology Multiple choice
Exam 2026 Questions and Answers
A nurse is preparing to give an oral dose of drug X to treat a patient's high blood
pressure. After giving the drug, the nurse finds that it reduces the blood pressure
without serious harmful effects, but it also causes the patient to have nausea and a
headache. Based on this information, which property of an ideal drug is this drug
lacking?
Effectiveness
Safety
Selectivity
Ease of administration - Correct answer-Selectivity
The drug is effective in lowering the blood pressure and safe in that it does not
cause harmful effects. However, as do most drugs, it causes other effects besides
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,the one response desired; therefore, it lacks selectivity. The oral form provides ease
of administration.
The nurse is preparing to give a drug with certain properties. Which property of the
drug is the most compelling indication that it should not be given?
The drug produces an unwanted side effect.
The drug is difficult to administer.
The drug's effects are reversible.
The drug is not effective for its intended purpose. - Correct answer-The drug is not
effective for its intended purpose
f a drug is not effective, there is no justification for giving it. Some drugs may be
given even though they produce unwanted side effects or are difficult to administer.
Reversible action is a desired property for most drugs.
Why is it important for drugs to have ease of administration?
Fewer administration errors
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,Less risk of side effects
Greater chemical stability
Greater likelihood of reversibility - Correct answer-Fewer Admin errors
Ease of administration increases convenience and adherence and can reduce
administration errors. Ease of administration is not related to side effects, chemical
stability, or reversibility.
The nurse teaches a patient not to consume alcohol with nitroglycerine, because the
blood pressure often drops significantly when nitroglycerine is taken with alcohol.
Which drug property does this illustrate?
Chemical instability
Drug interaction
Reversible action
Drug selectivity - Correct answer-Drug interaction
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, When two or more drugs are taken together, they can interact, causing either
increased or decreased drug responses. In this case, alcohol would increase the
nitroglycerine response. Chemical instability, reversible action, and drug selectivity
are not related to this situation.
When studying the impact a drug has on the body, the nurse is reviewing what?
The drug's pharmacokinetics
The drug's selectivity
The drug's pharmacodynamics
The drug's predictability - Correct answer-Pharmacodynamics
Pharmacodynamics can be thought of as the impact of drugs on the body.
Pharmacokinetics describes the movement of drugs through the body. Selectivity is
the ability of a drug to elicit only the response for which it is given. Predictability
is the degree of certainty about how a patient will respond to a certain drug.
When studying the effects of drugs in humans, the nurse is learning about what?
Pharmacology
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Exam 2026 Questions and Answers
A nurse is preparing to give an oral dose of drug X to treat a patient's high blood
pressure. After giving the drug, the nurse finds that it reduces the blood pressure
without serious harmful effects, but it also causes the patient to have nausea and a
headache. Based on this information, which property of an ideal drug is this drug
lacking?
Effectiveness
Safety
Selectivity
Ease of administration - Correct answer-Selectivity
The drug is effective in lowering the blood pressure and safe in that it does not
cause harmful effects. However, as do most drugs, it causes other effects besides
©COPYRIGHT 2025, ALL RIGHTS RESERVE 1
,the one response desired; therefore, it lacks selectivity. The oral form provides ease
of administration.
The nurse is preparing to give a drug with certain properties. Which property of the
drug is the most compelling indication that it should not be given?
The drug produces an unwanted side effect.
The drug is difficult to administer.
The drug's effects are reversible.
The drug is not effective for its intended purpose. - Correct answer-The drug is not
effective for its intended purpose
f a drug is not effective, there is no justification for giving it. Some drugs may be
given even though they produce unwanted side effects or are difficult to administer.
Reversible action is a desired property for most drugs.
Why is it important for drugs to have ease of administration?
Fewer administration errors
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,Less risk of side effects
Greater chemical stability
Greater likelihood of reversibility - Correct answer-Fewer Admin errors
Ease of administration increases convenience and adherence and can reduce
administration errors. Ease of administration is not related to side effects, chemical
stability, or reversibility.
The nurse teaches a patient not to consume alcohol with nitroglycerine, because the
blood pressure often drops significantly when nitroglycerine is taken with alcohol.
Which drug property does this illustrate?
Chemical instability
Drug interaction
Reversible action
Drug selectivity - Correct answer-Drug interaction
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, When two or more drugs are taken together, they can interact, causing either
increased or decreased drug responses. In this case, alcohol would increase the
nitroglycerine response. Chemical instability, reversible action, and drug selectivity
are not related to this situation.
When studying the impact a drug has on the body, the nurse is reviewing what?
The drug's pharmacokinetics
The drug's selectivity
The drug's pharmacodynamics
The drug's predictability - Correct answer-Pharmacodynamics
Pharmacodynamics can be thought of as the impact of drugs on the body.
Pharmacokinetics describes the movement of drugs through the body. Selectivity is
the ability of a drug to elicit only the response for which it is given. Predictability
is the degree of certainty about how a patient will respond to a certain drug.
When studying the effects of drugs in humans, the nurse is learning about what?
Pharmacology
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