, Question 1
A hospital's sepsis alert system triggers on a modified SIRS threshold,
generating a positive predictive value of 0.18. Which informatics intervention
MOST directly addresses this alert fatigue while preserving sensitivity for true
sepsis?
A. Increasing the alert threshold to require two additional SIRS criteria
before firing
B. Implementing a machine-learning risk score integrated into the EHR
that reweights variables by local prevalence
C. Disabling the alert during night shift to reduce nurse override rates
D. Adding a hard-stop order set that requires provider acknowledgment
before any antibiotic is ordered
Correct Answer: B - Implementing a machine-learning risk score
integrated into the EHR that reweights variables by local
prevalence
RATIONALE
A low PPV indicates excessive false positives; a locally calibrated ML
risk score reweights variables to improve discrimination without
simply raising thresholds (which reduces sensitivity). Raising
thresholds (A) or disabling alerts (C) sacrifices sensitivity, while
hard-stop order sets (D) address downstream ordering, not alert
specificity.
Question 2
In the DIKW framework, a nurse manager aggregates unit-level falls data,
identifies a 22% increase over two quarters, and infers that night-shift staffing
ratios correlate with fall incidence. This inference represents which level?
A. Data
B. Information
C. Knowledge
Page 2
, D. Wisdom
Correct Answer: C - Knowledge
RATIONALE
Knowledge involves interpreting information by recognizing patterns
and relationships (e.g., correlating staffing with falls). Data are raw
facts, information is structured data, and wisdom involves applying
knowledge with judgment to make decisions. The manager has not yet
enacted a decision, so wisdom is premature.
Question 3
Which set of criteria BEST distinguishes a Stage 2 meaningful use objective
under the HITECH Act from a Stage 3 objective in current CMS Promoting
Interoperability requirements?
A. Stage 2 requires e-prescribing; Stage 3 requires computerized provider
order entry (CPOE)
B. Stage 2 requires patient electronic access to health information; Stage
3 requires use of certified EHR technology to submit syndromic
surveillance data
C. Stage 2 requires clinical decision support; Stage 3 requires drug-drug
interaction checks
D. Stage 2 requires electronic lab results; Stage 3 requires electronic
medication administration records
Correct Answer: B - Stage 2 requires patient electronic access to
health information; Stage 3 requires use of certified EHR
technology to submit syndromic surveillance data
Page 3
, RATIONALE
Stage 2 expanded patient engagement through
view/download/transmit (VDT) and secure messaging, while Stage 3
advanced population health through public health reporting such as
syndromic surveillance. Options A, C, and D describe objectives from
earlier stages or core measures not unique to Stage 3.
Question 4
A quality improvement team applies the Model for Improvement to reduce
central line-associated bloodstream infections (CLABSI). After three PDSA
cycles, the rate decreased from 2.1 to 0.9 per 1,000 line days. Which statistical
process control (SPC) rule BEST confirms special-cause variation?
A. One point beyond three sigma from the centerline
B. Seven consecutive points trending upward
C. Two of three consecutive points beyond two sigma on the same side of
the centerline
D. Eight consecutive points within one sigma of the centerline
Correct Answer: A - One point beyond three sigma from the
centerline
RATIONALE
The Western Electric rules define special cause as any single point
beyond three sigma, or specific patterns such as two of three beyond
two sigma. Option B describes a trend but not necessarily special
cause unless it meets the seven-point rule in the correct direction; the
question asks for the BEST single rule, which is the three-sigma
outlier.
Question 5
Which interoperability standard would a nurse informaticist select to exchange
discrete, semantically interoperable laboratory result values between a hospital
EHR and a public health registry, ensuring LOINC-coded observations?
Page 4
A hospital's sepsis alert system triggers on a modified SIRS threshold,
generating a positive predictive value of 0.18. Which informatics intervention
MOST directly addresses this alert fatigue while preserving sensitivity for true
sepsis?
A. Increasing the alert threshold to require two additional SIRS criteria
before firing
B. Implementing a machine-learning risk score integrated into the EHR
that reweights variables by local prevalence
C. Disabling the alert during night shift to reduce nurse override rates
D. Adding a hard-stop order set that requires provider acknowledgment
before any antibiotic is ordered
Correct Answer: B - Implementing a machine-learning risk score
integrated into the EHR that reweights variables by local
prevalence
RATIONALE
A low PPV indicates excessive false positives; a locally calibrated ML
risk score reweights variables to improve discrimination without
simply raising thresholds (which reduces sensitivity). Raising
thresholds (A) or disabling alerts (C) sacrifices sensitivity, while
hard-stop order sets (D) address downstream ordering, not alert
specificity.
Question 2
In the DIKW framework, a nurse manager aggregates unit-level falls data,
identifies a 22% increase over two quarters, and infers that night-shift staffing
ratios correlate with fall incidence. This inference represents which level?
A. Data
B. Information
C. Knowledge
Page 2
, D. Wisdom
Correct Answer: C - Knowledge
RATIONALE
Knowledge involves interpreting information by recognizing patterns
and relationships (e.g., correlating staffing with falls). Data are raw
facts, information is structured data, and wisdom involves applying
knowledge with judgment to make decisions. The manager has not yet
enacted a decision, so wisdom is premature.
Question 3
Which set of criteria BEST distinguishes a Stage 2 meaningful use objective
under the HITECH Act from a Stage 3 objective in current CMS Promoting
Interoperability requirements?
A. Stage 2 requires e-prescribing; Stage 3 requires computerized provider
order entry (CPOE)
B. Stage 2 requires patient electronic access to health information; Stage
3 requires use of certified EHR technology to submit syndromic
surveillance data
C. Stage 2 requires clinical decision support; Stage 3 requires drug-drug
interaction checks
D. Stage 2 requires electronic lab results; Stage 3 requires electronic
medication administration records
Correct Answer: B - Stage 2 requires patient electronic access to
health information; Stage 3 requires use of certified EHR
technology to submit syndromic surveillance data
Page 3
, RATIONALE
Stage 2 expanded patient engagement through
view/download/transmit (VDT) and secure messaging, while Stage 3
advanced population health through public health reporting such as
syndromic surveillance. Options A, C, and D describe objectives from
earlier stages or core measures not unique to Stage 3.
Question 4
A quality improvement team applies the Model for Improvement to reduce
central line-associated bloodstream infections (CLABSI). After three PDSA
cycles, the rate decreased from 2.1 to 0.9 per 1,000 line days. Which statistical
process control (SPC) rule BEST confirms special-cause variation?
A. One point beyond three sigma from the centerline
B. Seven consecutive points trending upward
C. Two of three consecutive points beyond two sigma on the same side of
the centerline
D. Eight consecutive points within one sigma of the centerline
Correct Answer: A - One point beyond three sigma from the
centerline
RATIONALE
The Western Electric rules define special cause as any single point
beyond three sigma, or specific patterns such as two of three beyond
two sigma. Option B describes a trend but not necessarily special
cause unless it meets the seven-point rule in the correct direction; the
question asks for the BEST single rule, which is the three-sigma
outlier.
Question 5
Which interoperability standard would a nurse informaticist select to exchange
discrete, semantically interoperable laboratory result values between a hospital
EHR and a public health registry, ensuring LOINC-coded observations?
Page 4
