WGU D398 INTRODUCTION TO PHARMACOLOGY
OBJECTIVE ASSESSMENT (OA) EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS WITH
RATIONALES 100% GUARANTEED PASS!!
<LATEST VERSION>
1. A nurse is reviewing a new prescription and notices that the medication is listed
under its generic name rather than the manufacturer's registered product name.
Which statement best describes the generic name of a medication?
A. The name that identifies the drug's molecular and atomic structure
B. The standardized nonproprietary name assigned to the medication
C. The trademarked name selected by the manufacturer
D. The chemical formulation used during drug development
Answer: B
Rationale: The generic name is the standardized, nonproprietary name of a
medication. A chemical name describes the drug's molecular structure, while a
trade or brand name is the manufacturer's proprietary name.
2. A patient receives an intravenous dose of an analgesic for severe postoperative
pain. The nurse understands that the medication begins entering systemic
circulation immediately because the intravenous route:
A. Maximizes absorption through the intestinal mucosa
B. Reduces hepatic metabolism after absorption
C. Bypasses the absorption phase
D. Increases protein binding in the bloodstream
Answer: C
,Rationale: With intravenous administration, the medication is delivered directly
into the bloodstream, so there is no absorption step. This produces rapid systemic
availability and essentially 100% bioavailability.
3. A patient taking an oral medication has significantly reduced drug
concentrations compared with another patient receiving the same dose
intravenously. The medication is known to undergo extensive first-pass
metabolism. Which organ is primarily responsible for this initial metabolism?
A. Kidneys
B. Lungs
C. Liver
D. Pancreas
Answer: C
Rationale: Oral medications are absorbed from the gastrointestinal tract and travel
through the portal circulation to the liver before reaching systemic circulation.
Extensive hepatic metabolism can substantially reduce the amount of active drug
reaching the bloodstream.
4. A patient with chronic kidney disease is prescribed a medication that is
primarily eliminated unchanged by the kidneys. Which pharmacokinetic
consequence is most important for the nurse to anticipate?
A. Faster onset of action
B. Increased drug accumulation
C. Reduced drug distribution
D. Increased first-pass metabolism
Answer: B
Rationale: Impaired renal function can decrease drug excretion, causing the
medication to remain in the body longer and accumulate. Depending on the
medication, the dose or dosing interval may need adjustment.
,5. A patient taking lisinopril reports swelling of the lips and tongue and difficulty
swallowing. Which action should the nurse prioritize?
A. Reassure the patient that this is an expected effect
B. Administer the next scheduled dose with food
C. Recognize a potential serious adverse reaction and obtain immediate medical
assistance
D. Encourage increased fluid intake and reassess in 1 hour
Answer: C
Rationale: Lip and tongue swelling with an ACE inhibitor can indicate
angioedema, which may progress to airway obstruction. This is a potentially life-
threatening adverse reaction requiring immediate intervention.
6. A patient taking hydrochlorothiazide for hypertension has laboratory results
showing a potassium level of 3.0 mEq/L. Which assessment finding would be most
consistent with this abnormality?
A. Muscle weakness and cardiac dysrhythmias
B. Facial flushing and hyperthermia
C. Increased bowel sounds and diarrhea
D. Bradykinesia and muscle rigidity
Answer: A
Rationale: Hydrochlorothiazide can increase urinary potassium loss, producing
hypokalemia. Low potassium levels can cause muscle weakness, cramps, and
potentially dangerous cardiac dysrhythmias.
7. A patient with benign prostatic hyperplasia is beginning tamsulosin. Which
instruction is most appropriate?
A. Stop the medication if urination improves
B. Rise slowly from sitting or lying positions
C. Restrict fluid intake to prevent urinary retention
D. Take an additional dose when dizziness occurs
, Answer: B
Rationale: Tamsulosin is an alpha-1 adrenergic blocker that relaxes smooth
muscle in the prostate and bladder neck. Orthostatic hypotension and dizziness can
occur, so patients should change positions gradually.
8. A patient with type 2 diabetes is started on metformin. Several days later, the
patient reports nausea and loose stools but is otherwise stable. Which interpretation
is most appropriate?
A. These findings are consistent with common gastrointestinal effects of
metformin
B. These findings indicate severe hypoglycemia
C. These findings confirm an immediate allergic reaction
D. These findings indicate that metformin has caused renal failure
Answer: A
Rationale: Gastrointestinal effects such as nausea, abdominal discomfort, and
diarrhea are common when metformin is initiated. Persistent or severe symptoms
should be evaluated, but mild GI effects do not by themselves indicate an allergic
reaction or renal failure.
9. A patient taking atorvastatin reports new, unexplained muscle pain and
weakness. Which additional finding would be most concerning?
A. Increased appetite
B. Dark-colored urine
C. Mild nasal congestion
D. Increased thirst after exercise
Answer: B
Rationale: Significant muscle pain or weakness accompanied by dark urine can
suggest severe muscle injury with myoglobin release and possible rhabdomyolysis.
This is an important adverse effect requiring prompt evaluation.
OBJECTIVE ASSESSMENT (OA) EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS WITH
RATIONALES 100% GUARANTEED PASS!!
<LATEST VERSION>
1. A nurse is reviewing a new prescription and notices that the medication is listed
under its generic name rather than the manufacturer's registered product name.
Which statement best describes the generic name of a medication?
A. The name that identifies the drug's molecular and atomic structure
B. The standardized nonproprietary name assigned to the medication
C. The trademarked name selected by the manufacturer
D. The chemical formulation used during drug development
Answer: B
Rationale: The generic name is the standardized, nonproprietary name of a
medication. A chemical name describes the drug's molecular structure, while a
trade or brand name is the manufacturer's proprietary name.
2. A patient receives an intravenous dose of an analgesic for severe postoperative
pain. The nurse understands that the medication begins entering systemic
circulation immediately because the intravenous route:
A. Maximizes absorption through the intestinal mucosa
B. Reduces hepatic metabolism after absorption
C. Bypasses the absorption phase
D. Increases protein binding in the bloodstream
Answer: C
,Rationale: With intravenous administration, the medication is delivered directly
into the bloodstream, so there is no absorption step. This produces rapid systemic
availability and essentially 100% bioavailability.
3. A patient taking an oral medication has significantly reduced drug
concentrations compared with another patient receiving the same dose
intravenously. The medication is known to undergo extensive first-pass
metabolism. Which organ is primarily responsible for this initial metabolism?
A. Kidneys
B. Lungs
C. Liver
D. Pancreas
Answer: C
Rationale: Oral medications are absorbed from the gastrointestinal tract and travel
through the portal circulation to the liver before reaching systemic circulation.
Extensive hepatic metabolism can substantially reduce the amount of active drug
reaching the bloodstream.
4. A patient with chronic kidney disease is prescribed a medication that is
primarily eliminated unchanged by the kidneys. Which pharmacokinetic
consequence is most important for the nurse to anticipate?
A. Faster onset of action
B. Increased drug accumulation
C. Reduced drug distribution
D. Increased first-pass metabolism
Answer: B
Rationale: Impaired renal function can decrease drug excretion, causing the
medication to remain in the body longer and accumulate. Depending on the
medication, the dose or dosing interval may need adjustment.
,5. A patient taking lisinopril reports swelling of the lips and tongue and difficulty
swallowing. Which action should the nurse prioritize?
A. Reassure the patient that this is an expected effect
B. Administer the next scheduled dose with food
C. Recognize a potential serious adverse reaction and obtain immediate medical
assistance
D. Encourage increased fluid intake and reassess in 1 hour
Answer: C
Rationale: Lip and tongue swelling with an ACE inhibitor can indicate
angioedema, which may progress to airway obstruction. This is a potentially life-
threatening adverse reaction requiring immediate intervention.
6. A patient taking hydrochlorothiazide for hypertension has laboratory results
showing a potassium level of 3.0 mEq/L. Which assessment finding would be most
consistent with this abnormality?
A. Muscle weakness and cardiac dysrhythmias
B. Facial flushing and hyperthermia
C. Increased bowel sounds and diarrhea
D. Bradykinesia and muscle rigidity
Answer: A
Rationale: Hydrochlorothiazide can increase urinary potassium loss, producing
hypokalemia. Low potassium levels can cause muscle weakness, cramps, and
potentially dangerous cardiac dysrhythmias.
7. A patient with benign prostatic hyperplasia is beginning tamsulosin. Which
instruction is most appropriate?
A. Stop the medication if urination improves
B. Rise slowly from sitting or lying positions
C. Restrict fluid intake to prevent urinary retention
D. Take an additional dose when dizziness occurs
, Answer: B
Rationale: Tamsulosin is an alpha-1 adrenergic blocker that relaxes smooth
muscle in the prostate and bladder neck. Orthostatic hypotension and dizziness can
occur, so patients should change positions gradually.
8. A patient with type 2 diabetes is started on metformin. Several days later, the
patient reports nausea and loose stools but is otherwise stable. Which interpretation
is most appropriate?
A. These findings are consistent with common gastrointestinal effects of
metformin
B. These findings indicate severe hypoglycemia
C. These findings confirm an immediate allergic reaction
D. These findings indicate that metformin has caused renal failure
Answer: A
Rationale: Gastrointestinal effects such as nausea, abdominal discomfort, and
diarrhea are common when metformin is initiated. Persistent or severe symptoms
should be evaluated, but mild GI effects do not by themselves indicate an allergic
reaction or renal failure.
9. A patient taking atorvastatin reports new, unexplained muscle pain and
weakness. Which additional finding would be most concerning?
A. Increased appetite
B. Dark-colored urine
C. Mild nasal congestion
D. Increased thirst after exercise
Answer: B
Rationale: Significant muscle pain or weakness accompanied by dark urine can
suggest severe muscle injury with myoglobin release and possible rhabdomyolysis.
This is an important adverse effect requiring prompt evaluation.
