Introduction to Pharmacology NCLEX-RN Exam
Questions |
20 ATI Pharmacology Made Easy Style Practice
Questions with Rationales | Nursing
Pharmacology Test Bank | NGN Clinical
Judgment Review
Question 1
Clinical Scenario
A 68-year-old man is admitted to a medical-surgical unit with
community-acquired pneumonia. His medical history includes
hypertension, type 2 diabetes mellitus, and chronic kidney
disease (stage 3). The provider prescribes intravenous
ceftriaxone. Before administering the medication, the nurse
reviews the electronic health record and notes that the patient
developed anaphylaxis after receiving cefazolin several years
,ago. Current vital signs are stable, and the patient reports no
respiratory distress.
Question Stem
Which nursing action is the priority?
A. Administer the ceftriaxone as prescribed while monitoring
closely for adverse reactions.
B. Administer diphenhydramine before the antibiotic to reduce
the risk of an allergic reaction.
C. Withhold the medication and notify the provider about the
patient's allergy history.
D. Administer half the prescribed dose and assess the patient's
tolerance.
Correct Answer
Correct Answer: C. Withhold the medication and notify the
provider about the patient's allergy history.
Detailed Rationale
Medication administration begins with verifying that a
medication is safe for the individual patient. A documented
history of anaphylaxis to a cephalosporin represents a
potentially life-threatening contraindication that requires
clarification before another cephalosporin is administered.
Although cross-reactivity among cephalosporins varies
,depending on chemical side chains, the nurse should never
independently decide that the medication is safe when a severe
hypersensitivity reaction has previously occurred. The
appropriate nursing action is to hold the medication and
contact the prescribing provider so that an alternative
antibiotic can be considered. This intervention prevents a
potentially fatal medication error and demonstrates appropriate
clinical judgment.
Option A is incorrect because administering the medication
despite a history of anaphylaxis places the patient at significant
risk for another severe allergic reaction.
Option B is incorrect because premedicating with
diphenhydramine does not prevent anaphylaxis and should
never be used to justify administering a contraindicated
medication.
Option D is incorrect because reducing the dose does not
reduce the risk of an IgE-mediated allergic reaction. Even a
small amount of the drug can trigger anaphylaxis.
Nurses should always verify allergies before medication
administration, distinguish side effects from true allergies,
document reactions accurately, and communicate concerns
promptly using established safety protocols.
Learning Objectives
, After completing this question, the learner should be able to:
• Identify a contraindication to medication administration
based on allergy history.
• Prioritize patient safety before administering prescribed
medications.
• Differentiate severe allergic reactions from expected
medication side effects.
• Apply clinical judgment when verifying medication orders.
Medication Safety Focus
Contraindication
Question 2
Clinical Scenario
A nurse is educating a newly licensed nurse about the process
by which oral medications produce their therapeutic effects.
During the discussion, the orientee asks why some medications
begin working within minutes while others require several days
before noticeable improvement occurs.
Question Stem
Which statement by the experienced nurse best explains this
difference?
Questions |
20 ATI Pharmacology Made Easy Style Practice
Questions with Rationales | Nursing
Pharmacology Test Bank | NGN Clinical
Judgment Review
Question 1
Clinical Scenario
A 68-year-old man is admitted to a medical-surgical unit with
community-acquired pneumonia. His medical history includes
hypertension, type 2 diabetes mellitus, and chronic kidney
disease (stage 3). The provider prescribes intravenous
ceftriaxone. Before administering the medication, the nurse
reviews the electronic health record and notes that the patient
developed anaphylaxis after receiving cefazolin several years
,ago. Current vital signs are stable, and the patient reports no
respiratory distress.
Question Stem
Which nursing action is the priority?
A. Administer the ceftriaxone as prescribed while monitoring
closely for adverse reactions.
B. Administer diphenhydramine before the antibiotic to reduce
the risk of an allergic reaction.
C. Withhold the medication and notify the provider about the
patient's allergy history.
D. Administer half the prescribed dose and assess the patient's
tolerance.
Correct Answer
Correct Answer: C. Withhold the medication and notify the
provider about the patient's allergy history.
Detailed Rationale
Medication administration begins with verifying that a
medication is safe for the individual patient. A documented
history of anaphylaxis to a cephalosporin represents a
potentially life-threatening contraindication that requires
clarification before another cephalosporin is administered.
Although cross-reactivity among cephalosporins varies
,depending on chemical side chains, the nurse should never
independently decide that the medication is safe when a severe
hypersensitivity reaction has previously occurred. The
appropriate nursing action is to hold the medication and
contact the prescribing provider so that an alternative
antibiotic can be considered. This intervention prevents a
potentially fatal medication error and demonstrates appropriate
clinical judgment.
Option A is incorrect because administering the medication
despite a history of anaphylaxis places the patient at significant
risk for another severe allergic reaction.
Option B is incorrect because premedicating with
diphenhydramine does not prevent anaphylaxis and should
never be used to justify administering a contraindicated
medication.
Option D is incorrect because reducing the dose does not
reduce the risk of an IgE-mediated allergic reaction. Even a
small amount of the drug can trigger anaphylaxis.
Nurses should always verify allergies before medication
administration, distinguish side effects from true allergies,
document reactions accurately, and communicate concerns
promptly using established safety protocols.
Learning Objectives
, After completing this question, the learner should be able to:
• Identify a contraindication to medication administration
based on allergy history.
• Prioritize patient safety before administering prescribed
medications.
• Differentiate severe allergic reactions from expected
medication side effects.
• Apply clinical judgment when verifying medication orders.
Medication Safety Focus
Contraindication
Question 2
Clinical Scenario
A nurse is educating a newly licensed nurse about the process
by which oral medications produce their therapeutic effects.
During the discussion, the orientee asks why some medications
begin working within minutes while others require several days
before noticeable improvement occurs.
Question Stem
Which statement by the experienced nurse best explains this
difference?
