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Delta Check Investigation

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

When a result differs sharply from a recent prior value without a clinical explanation, investigate before releasing, identity, specimen, dilution, instrument, and true clinical change are all on the table.

Advanced10 min read15 sectionsLaboratory Quality Management
Section 1 of 150%

Learning Objectives

Getting started

Section 1 of 15

Learning Objectives

Learning Objectives

Section: Learning Objectives

Each objective is a practical judgment skill for everyday laboratory work, not regulation memorization.

  • Define a delta check flag as a sharp difference between a current result and a recent prior result for the same patient
  • List the categories of causes that must be considered before releasing a delta-flagged result
  • Explain why a delta check flag must be investigated rather than auto-released under queue pressure

Section 1 of 15