Workload measurement

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Workload measurement, in pathology, is the quantification of work. It is important in workforce planning and quality.[1]

There are various systems to quantify workload.

Level 4 equivalent

  • Abbreviated L4E.
  • System endorsed by the Canadian Association of Pathologists.[1]

Current procedural terminology

  • Abbreviated CPT.
  • A nomenclature system by the American Medical Association that covers all medical services - not only pathology.[2]

Automatable activity-based approach to complexity unit scoring

  • Abbreviated AABACUS.
  • A workload model developed by the University Health Network in Toronto.[3]


  • Abbreviated W2Q.
  • A workload model proposed by the Ontario Association of Pathologists.[4]

See also


  1. 1.0 1.1 Maung, RT. (2010). "Canadian Association of Pathologists Guidelines for Measurement of Pathologist Workload.". Canadian Journal of Pathology 2 (1): 8-19.
  2. URL: Accessed on: 12 June 2014.
  3. Cheung, CC.; Torlakovic, EE.; Chow, H.; Snover, DC.; Asa, SL. (Mar 2015). "Modeling complexity in pathologist workload measurement: the Automatable Activity-Based Approach to Complexity Unit Scoring (AABACUS).". Mod Pathol 28 (3): 324-39. doi:10.1038/modpathol.2014.123. PMID 25216230.
  4. URL: Accessed on: May 4, 2017.