Data and Chart Interpretation Flashcards
7 cards from real Epic Skills Assessment practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Data and Chart Interpretation flashcards as text
Epic's analytics tool shows that a unit's pressure injury rate dropped from 3.2% to 1.8% after implementing a new protocol. What is the absolute reduction in rate?
Answer: 1.4%
Absolute reduction = 3.2% − 1.8% = 1.4 percentage points.
A bar graph compares average response times (minutes) for five alarm types: Cardiac 1.2, Fall 2.8, Pain 5.1, Call Light 3.4, IV Infusion 2.1. Which alarm type has the second-fastest response time?
Answer: IV Infusion
Sorted from fastest to slowest: Cardiac 1.2, IV Infusion 2.1, Fall 2.8, Call Light 3.4, Pain 5.1 — IV Infusion has the second-fastest response time.
A line graph shows two metrics over six months: patient complaints (solid line, left axis) and staff satisfaction scores (dashed line, right axis). Both lines move in opposite directions throughout. What type of correlation does this suggest?
Answer: Negative correlation
When two variables consistently move in opposite directions — one increasing as the other decreases — this indicates a negative (inverse) correlation.
An Epic report shows the percentage of patients receiving discharge education: Q1 72%, Q2 79%, Q3 85%, Q4 91%. If this linear trend continues, what is the projected rate for Q5?
Answer: 97%
The increases are Q1→Q2: +7%, Q2→Q3: +6%, Q3→Q4: +6% — the average increase is approximately 6.3%, so Q4 (91%) + ~6% ≈ 97% for Q5.
A table shows the number of patients screened for falls by age group: 18–44: 245, 45–64: 312, 65–74: 289, 75+: 178. What percentage of all screened patients are in the 65–74 group?
Answer: 24.4%
Total patients = 245 + 312 + 289 + 178 = 1,024; 65–74 group = 289; percentage = 289 ÷ 1,024 × 100 ≈ 28.2%. Wait, let me recalculate: 289/1024 = 0.2822 = 28.2%. The closest answer is 28.1%. Actually 245+312=557, 557+289=846, 846+178=1024. 289/1024=0.28223=28.2%. Closest answer is 28.1%.
An Epic trend report shows a patient's INR values: Day 1: 1.1, Day 3: 1.8, Day 5: 2.4, Day 7: 3.1, Day 9: 3.9. The therapeutic range is 2.0–3.0. On which day did the INR first exceed the therapeutic range?
Answer: Day 7
Day 5 INR of 2.4 is within the therapeutic range (2.0–3.0); Day 7 INR of 3.1 is the first value to exceed the upper limit of 3.0.
A dashboard graph displays the number of hours between a sepsis alert and antibiotic administration for 10 patients: 0.5, 1.0, 0.75, 2.0, 0.5, 1.25, 0.75, 1.5, 0.5, 3.0. What is the mode of this dataset?
Answer: 0.5 hours
The mode is the value that appears most frequently; 0.5 hours appears three times, more than any other value.