, Question 1
A patient with decompensated heart failure is started on sacubitril/valsartan.
Which concurrent medication requires the most immediate reassessment
because of a potentially fatal pharmacodynamic interaction?
A. Spironolactone
B. Lisinopril
C. Metoprolol succinate
D. Dapagliflozin
Correct Answer: B - Lisinopril
RATIONALE
Sacubitril/valsartan contains a neprilysin inhibitor and an ARB;
concurrent ACE inhibitor use markedly increases risk of angioedema
and requires a 36-hour washout. Spironolactone, metoprolol, and
dapagliflozin are all guideline-supported in HFrEF without this
specific fatal interaction. This tests synthesis of RAAS pharmacology
and boxed-warning knowledge.
Question 2
A nurse researcher obtains a p-value of 0.04 with a 95% CI of 0.98-1.12 for a
risk ratio. What is the most rigorous interpretation?
A. The result is statistically and clinically significant.
B. The p-value and CI are concordant and support efficacy.
C. The finding is statistically significant but not clinically or statistically
conclusive because the CI crosses 1.0.
D. The study is underpowered and should be discarded.
Correct Answer: C - The finding is statistically significant but not
clinically or statistically conclusive because the CI crosses 1.0.
Page 2
, RATIONALE
A CI crossing 1.0 for a risk ratio indicates a non-significant effect
despite p = 0.04, reflecting the discordance that can occur with
borderline results. Statistical significance does not equal clinical
significance, and discarding a study is not warranted. This tests critical
appraisal and biostatistical reasoning.
Question 3
Which assessment finding best differentiates delirium from dementia in an
acutely hospitalized patient?
A. Gradual onset with stable cognitive decline
B. Acute onset with fluctuating attention and altered consciousness
C. Preserved attention with memory loss
D. Sun-downing behavior only in the evening
Correct Answer: B - Acute onset with fluctuating attention and
altered consciousness
RATIONALE
Delirium is characterized by acute onset, fluctuating course, and
impaired attention/awareness, distinguishing it from the insidious,
stable course of dementia. Sun-downing can occur in both, and
preserved attention is not typical of delirium. This tests advanced
health assessment and differential reasoning.
Question 4
A hospital adopts a clinical decision support (CDS) alert for sepsis but
observes alert fatigue and low override rates. Which informatics strategy best
addresses this using current best practice?
A. Increase the number of alerts to improve sensitivity
B. Implement tiered, evidence-based alerts with contextual triggers and
user feedback
C. Disable all alerts to reduce cognitive load
Page 3
, D. Require mandatory hard stops for every alert
Correct Answer: B - Implement tiered, evidence-based alerts with
contextual triggers and user feedback
RATIONALE
Tiered, context-aware CDS with user feedback aligns with the 'Five
Rights' of CDS and reduces alert fatigue while maintaining safety.
Increasing alerts worsens fatigue, disabling alerts removes safety nets,
and hard stops for every alert are impractical. This tests informatics
and human factors synthesis.
Question 5
A community health program reports a relative risk reduction of 30% for a new
vaccine, but the absolute risk reduction is 1.5%. Which statement best reflects
the public health implication?
A. The vaccine is highly effective and should be mandated.
B. The number needed to treat is approximately 67, indicating modest
absolute benefit.
C. The relative risk reduction is misleading and the vaccine is ineffective.
D. The absolute risk reduction is irrelevant to policy decisions.
Correct Answer: B - The number needed to treat is
approximately 67, indicating modest absolute benefit.
RATIONALE
NNT = 1/ARR = 1/0.015 67, showing a meaningful but modest
absolute benefit despite a large relative reduction. Relative risk
reduction alone can exaggerate impact; absolute measures guide
policy. This tests population health and evidence interpretation.
Question 6
Which mechanism best explains why a patient on chronic corticosteroid
therapy develops hyperglycemia?
Page 4
A patient with decompensated heart failure is started on sacubitril/valsartan.
Which concurrent medication requires the most immediate reassessment
because of a potentially fatal pharmacodynamic interaction?
A. Spironolactone
B. Lisinopril
C. Metoprolol succinate
D. Dapagliflozin
Correct Answer: B - Lisinopril
RATIONALE
Sacubitril/valsartan contains a neprilysin inhibitor and an ARB;
concurrent ACE inhibitor use markedly increases risk of angioedema
and requires a 36-hour washout. Spironolactone, metoprolol, and
dapagliflozin are all guideline-supported in HFrEF without this
specific fatal interaction. This tests synthesis of RAAS pharmacology
and boxed-warning knowledge.
Question 2
A nurse researcher obtains a p-value of 0.04 with a 95% CI of 0.98-1.12 for a
risk ratio. What is the most rigorous interpretation?
A. The result is statistically and clinically significant.
B. The p-value and CI are concordant and support efficacy.
C. The finding is statistically significant but not clinically or statistically
conclusive because the CI crosses 1.0.
D. The study is underpowered and should be discarded.
Correct Answer: C - The finding is statistically significant but not
clinically or statistically conclusive because the CI crosses 1.0.
Page 2
, RATIONALE
A CI crossing 1.0 for a risk ratio indicates a non-significant effect
despite p = 0.04, reflecting the discordance that can occur with
borderline results. Statistical significance does not equal clinical
significance, and discarding a study is not warranted. This tests critical
appraisal and biostatistical reasoning.
Question 3
Which assessment finding best differentiates delirium from dementia in an
acutely hospitalized patient?
A. Gradual onset with stable cognitive decline
B. Acute onset with fluctuating attention and altered consciousness
C. Preserved attention with memory loss
D. Sun-downing behavior only in the evening
Correct Answer: B - Acute onset with fluctuating attention and
altered consciousness
RATIONALE
Delirium is characterized by acute onset, fluctuating course, and
impaired attention/awareness, distinguishing it from the insidious,
stable course of dementia. Sun-downing can occur in both, and
preserved attention is not typical of delirium. This tests advanced
health assessment and differential reasoning.
Question 4
A hospital adopts a clinical decision support (CDS) alert for sepsis but
observes alert fatigue and low override rates. Which informatics strategy best
addresses this using current best practice?
A. Increase the number of alerts to improve sensitivity
B. Implement tiered, evidence-based alerts with contextual triggers and
user feedback
C. Disable all alerts to reduce cognitive load
Page 3
, D. Require mandatory hard stops for every alert
Correct Answer: B - Implement tiered, evidence-based alerts with
contextual triggers and user feedback
RATIONALE
Tiered, context-aware CDS with user feedback aligns with the 'Five
Rights' of CDS and reduces alert fatigue while maintaining safety.
Increasing alerts worsens fatigue, disabling alerts removes safety nets,
and hard stops for every alert are impractical. This tests informatics
and human factors synthesis.
Question 5
A community health program reports a relative risk reduction of 30% for a new
vaccine, but the absolute risk reduction is 1.5%. Which statement best reflects
the public health implication?
A. The vaccine is highly effective and should be mandated.
B. The number needed to treat is approximately 67, indicating modest
absolute benefit.
C. The relative risk reduction is misleading and the vaccine is ineffective.
D. The absolute risk reduction is irrelevant to policy decisions.
Correct Answer: B - The number needed to treat is
approximately 67, indicating modest absolute benefit.
RATIONALE
NNT = 1/ARR = 1/0.015 67, showing a meaningful but modest
absolute benefit despite a large relative reduction. Relative risk
reduction alone can exaggerate impact; absolute measures guide
policy. This tests population health and evidence interpretation.
Question 6
Which mechanism best explains why a patient on chronic corticosteroid
therapy develops hyperglycemia?
Page 4
