Composition of Blood

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

Physical composition of blood, plasma, formed elements, and proportional relationships that underpin every hematology result.

Foundational20 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.

  • Describe plasma, serum, and formed elements as distinct compositional compartments
  • Relate relative proportions of erythrocytes, leukocytes, and platelets to typical test design
  • Explain why hematocrit and cell counts express composition differently on reports