Preanalytical Variables

This Medical Laboratory Science lesson in Hematology supports laboratory science learning and laboratory interpretation for medical laboratory students and professionals.

Patient, specimen, and transport factors that alter CBC results before analysis, and how to mitigate them at the bench.

Foundational28 min read15 sectionsHematology
Section 1 of 150%

Learning Objectives

Getting started

Section 1 of 15

Learning Objectives

Learning Objectives

Section: Learning Objectives

Each objective below describes a competency you will apply at the bench, not rote definitions in isolation.

  • Classify preanalytical errors: identification, collection, transport, storage
  • Identify patient factors affecting CBC interpretation (age, sex, pregnancy, altitude, exercise)
  • Apply corrective actions per institutional protocol