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Order of Draw

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

Apply CLSI order-of-draw principles to prevent additive carryover that falsely alters chemistry results.

Foundational22 min read15 sectionsClinical Chemistry
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 chemistry bench, not rote definitions in isolation.

  • Apply the CLSI GP41 order of draw to routine venipuncture
  • Recognize chemistry patterns caused by additive carryover
  • Investigate and recollect specimens when carryover is suspected

Section 1 of 15