MHA 705 Module 6 Exam Questions & Answers 2026/2027 with
Detailed Rationales | Complete Exam-Style Questions | Graded A+
Pass Guaranteed
SECTION I: Healthcare Operations Management & Process Improvement
Question 1
A 340-bed urban medical center has experienced a 22% increase in emergency
department length of stay over the past 18 months. Root cause analysis reveals that
discharge delays account for 40% of the increase, while bed turnover inefficiencies
contribute 35%. The Chief Operating Officer requests a lean Six Sigma intervention.
Which DMAIC phase should prioritize the development of a standardized discharge
protocol with embedded hard stops for physician sign-off?
A. Define phase, because it establishes the project charter and scope boundaries
B. Measure phase, because it validates baseline performance metrics before solution
design
C. Improve phase, because it involves designing, testing, and implementing process
solutions
D. Control phase, because it institutionalizes the new protocol through statistical
process control
Correct Answer: C
Rationale: Option C is correct. The Improve phase of DMAIC is specifically dedicated to
designing, testing, and implementing solutions that address validated root causes. A
standardized discharge protocol with hard stops is a process redesign solution, not a
scoping activity (Define), a baseline measurement (Measure), or a sustainment
mechanism (Control). While the Control phase will eventually institutionalize the
protocol, the actual development and implementation of the solution occurs in the
Improve phase.
,Question 2
A regional health system implements a centralized scheduling platform across 12
ambulatory clinics. Post-implementation data reveals that patient no-show rates
decreased by 8% at clinics that previously had decentralized scheduling, but increased
by 3% at clinics that already had robust reminder systems. Which operations
management principle best explains this differential outcome?
A. The Hawthorne effect, because staff behavior changed due to observation
B. The theory of constraints, because centralized scheduling eliminated bottlenecks
only where they existed
C. Diminishing marginal returns, because clinics with existing systems experienced
reduced incremental benefit
D. Economies of scale, because centralized operations always reduce per-unit costs
Correct Answer: C
Rationale: Option C is correct. The principle of diminishing marginal returns explains
why adding a centralized scheduling system to clinics that already had robust reminder
systems yielded minimal or negative incremental benefit, while clinics with no prior
systems experienced substantial improvement. The Hawthorne effect (A) involves
behavioral changes due to observation, not system implementation. The theory of
constraints (B) focuses on bottleneck elimination, not differential marginal benefits.
Economies of scale (D) is a cost concept, not a scheduling effectiveness concept.
Question 3
A hospital's surgical services department operates at 94% capacity during weekdays but
drops to 61% on Fridays and 38% on weekends. The OR manager proposes block
scheduling modifications to smooth demand. Which analytical approach should be
used first to determine whether the capacity imbalance is driven by demand patterns or
supply constraints?
,A. Time-series regression analyzing historical case volume by day-of-week
B. A fishbone diagram to identify all potential causes of Friday/weekend underutilization
C. A queuing theory model to calculate optimal server utilization rates
D. A break-even analysis comparing fixed and variable costs across days
Correct Answer: A
Rationale: Option A is correct. Before designing interventions, operations managers
must first determine whether the observed pattern is driven by demand-side factors
(fewer cases scheduled) or supply-side factors (staffing limitations, surgeon
availability). Time-series regression by day-of-week isolates demand patterns from
supply constraints by analyzing historical case volume independent of scheduled
capacity. A fishbone diagram (B) is useful for cause categorization but does not
quantitatively distinguish demand from supply drivers. Queuing theory (C) optimizes
capacity given demand but assumes demand is known. Break-even analysis (D) is a
financial tool, not an operational demand-supply diagnostic.
Question 4
A healthcare organization adopts a "Plan-Do-Study-Act" (PDSA) cycle to reduce central
line-associated bloodstream infections (CLABSIs) in its ICU. During the "Study" phase,
the quality team observes a 15% reduction in CLABSIs but notes that hand hygiene
compliance actually decreased by 4%. Which interpretation is most consistent with the
PDSA framework?
A. The intervention failed because hand hygiene compliance declined
B. The intervention succeeded because the primary outcome improved
C. The results are inconclusive because confounding variables may explain the CLABSI
reduction
D. The team should immediately proceed to the "Act" phase and scale the intervention
system-wide
Correct Answer: C
, Rationale: Option C is correct. In the PDSA framework, the Study phase requires critical
analysis of all observed outcomes, including unintended consequences and potential
confounders. A decrease in hand hygiene compliance raises questions about whether
the CLABSI reduction was caused by the intervention or by other factors (e.g., seasonal
variation, changes in patient acuity, or concurrent infection control initiatives). The team
must investigate these relationships before scaling. Option A is incorrect because the
primary outcome did improve. Option B ignores the confounding signal. Option D
violates PDSA principles by skipping rigorous evaluation.
Question 5
A community hospital's pharmacy department experiences recurrent stockouts of
critical medications despite maintaining a perpetual inventory system. Analysis reveals
that reorder points are calculated using average daily usage but fail to account for
demand volatility during flu season. Which inventory management enhancement should
the Director of Pharmacy prioritize?
A. Implementing a just-in-time (JIT) inventory system with daily supplier deliveries
B. Adopting a probabilistic inventory model that incorporates safety stock based on
demand standard deviation
C. Switching to a fixed-period reorder system with monthly inventory counts
D. Eliminating the perpetual inventory system and returning to periodic physical counts
Correct Answer: B
Rationale: Option B is correct. The core problem is that the current reorder point model
uses average demand but ignores demand variability (volatility), leading to stockouts
during high-demand periods. A probabilistic inventory model that calculates safety
stock based on demand standard deviation and desired service levels directly
addresses this deficiency. JIT (A) reduces inventory holding costs but increases
stockout risk if demand spikes. Fixed-period reordering (C) does not inherently account
Detailed Rationales | Complete Exam-Style Questions | Graded A+
Pass Guaranteed
SECTION I: Healthcare Operations Management & Process Improvement
Question 1
A 340-bed urban medical center has experienced a 22% increase in emergency
department length of stay over the past 18 months. Root cause analysis reveals that
discharge delays account for 40% of the increase, while bed turnover inefficiencies
contribute 35%. The Chief Operating Officer requests a lean Six Sigma intervention.
Which DMAIC phase should prioritize the development of a standardized discharge
protocol with embedded hard stops for physician sign-off?
A. Define phase, because it establishes the project charter and scope boundaries
B. Measure phase, because it validates baseline performance metrics before solution
design
C. Improve phase, because it involves designing, testing, and implementing process
solutions
D. Control phase, because it institutionalizes the new protocol through statistical
process control
Correct Answer: C
Rationale: Option C is correct. The Improve phase of DMAIC is specifically dedicated to
designing, testing, and implementing solutions that address validated root causes. A
standardized discharge protocol with hard stops is a process redesign solution, not a
scoping activity (Define), a baseline measurement (Measure), or a sustainment
mechanism (Control). While the Control phase will eventually institutionalize the
protocol, the actual development and implementation of the solution occurs in the
Improve phase.
,Question 2
A regional health system implements a centralized scheduling platform across 12
ambulatory clinics. Post-implementation data reveals that patient no-show rates
decreased by 8% at clinics that previously had decentralized scheduling, but increased
by 3% at clinics that already had robust reminder systems. Which operations
management principle best explains this differential outcome?
A. The Hawthorne effect, because staff behavior changed due to observation
B. The theory of constraints, because centralized scheduling eliminated bottlenecks
only where they existed
C. Diminishing marginal returns, because clinics with existing systems experienced
reduced incremental benefit
D. Economies of scale, because centralized operations always reduce per-unit costs
Correct Answer: C
Rationale: Option C is correct. The principle of diminishing marginal returns explains
why adding a centralized scheduling system to clinics that already had robust reminder
systems yielded minimal or negative incremental benefit, while clinics with no prior
systems experienced substantial improvement. The Hawthorne effect (A) involves
behavioral changes due to observation, not system implementation. The theory of
constraints (B) focuses on bottleneck elimination, not differential marginal benefits.
Economies of scale (D) is a cost concept, not a scheduling effectiveness concept.
Question 3
A hospital's surgical services department operates at 94% capacity during weekdays but
drops to 61% on Fridays and 38% on weekends. The OR manager proposes block
scheduling modifications to smooth demand. Which analytical approach should be
used first to determine whether the capacity imbalance is driven by demand patterns or
supply constraints?
,A. Time-series regression analyzing historical case volume by day-of-week
B. A fishbone diagram to identify all potential causes of Friday/weekend underutilization
C. A queuing theory model to calculate optimal server utilization rates
D. A break-even analysis comparing fixed and variable costs across days
Correct Answer: A
Rationale: Option A is correct. Before designing interventions, operations managers
must first determine whether the observed pattern is driven by demand-side factors
(fewer cases scheduled) or supply-side factors (staffing limitations, surgeon
availability). Time-series regression by day-of-week isolates demand patterns from
supply constraints by analyzing historical case volume independent of scheduled
capacity. A fishbone diagram (B) is useful for cause categorization but does not
quantitatively distinguish demand from supply drivers. Queuing theory (C) optimizes
capacity given demand but assumes demand is known. Break-even analysis (D) is a
financial tool, not an operational demand-supply diagnostic.
Question 4
A healthcare organization adopts a "Plan-Do-Study-Act" (PDSA) cycle to reduce central
line-associated bloodstream infections (CLABSIs) in its ICU. During the "Study" phase,
the quality team observes a 15% reduction in CLABSIs but notes that hand hygiene
compliance actually decreased by 4%. Which interpretation is most consistent with the
PDSA framework?
A. The intervention failed because hand hygiene compliance declined
B. The intervention succeeded because the primary outcome improved
C. The results are inconclusive because confounding variables may explain the CLABSI
reduction
D. The team should immediately proceed to the "Act" phase and scale the intervention
system-wide
Correct Answer: C
, Rationale: Option C is correct. In the PDSA framework, the Study phase requires critical
analysis of all observed outcomes, including unintended consequences and potential
confounders. A decrease in hand hygiene compliance raises questions about whether
the CLABSI reduction was caused by the intervention or by other factors (e.g., seasonal
variation, changes in patient acuity, or concurrent infection control initiatives). The team
must investigate these relationships before scaling. Option A is incorrect because the
primary outcome did improve. Option B ignores the confounding signal. Option D
violates PDSA principles by skipping rigorous evaluation.
Question 5
A community hospital's pharmacy department experiences recurrent stockouts of
critical medications despite maintaining a perpetual inventory system. Analysis reveals
that reorder points are calculated using average daily usage but fail to account for
demand volatility during flu season. Which inventory management enhancement should
the Director of Pharmacy prioritize?
A. Implementing a just-in-time (JIT) inventory system with daily supplier deliveries
B. Adopting a probabilistic inventory model that incorporates safety stock based on
demand standard deviation
C. Switching to a fixed-period reorder system with monthly inventory counts
D. Eliminating the perpetual inventory system and returning to periodic physical counts
Correct Answer: B
Rationale: Option B is correct. The core problem is that the current reorder point model
uses average demand but ignores demand variability (volatility), leading to stockouts
during high-demand periods. A probabilistic inventory model that calculates safety
stock based on demand standard deviation and desired service levels directly
addresses this deficiency. JIT (A) reduces inventory holding costs but increases
stockout risk if demand spikes. Fixed-period reordering (C) does not inherently account
