29  SLA Coverage

29.1 Why this matters

SLA coverage shows how many cases meet the expected turnaround windows (24/48/72 hours). It frames performance in a way clinicians and leadership recognize.

29.2 Coverage Table

# A tibble: 3 × 2
  threshold_hours coverage
            <dbl>    <dbl>
1              24    0.908
2              48    0.973
3              72    0.982

29.3 Coverage Curve

29.4 Interpretation Guide

  • Coverage at 24/48/72 hours is the headline metric; track it weekly.
  • The slope of the coverage curve shows how quickly cases complete; a long flat tail indicates persistent outliers.
  • If coverage dips after process changes, inspect which leg (Lab→Scan, Scan→PACS) dominates those late cases and address that stage first.