How to Read a Red Blood Cell Histogram

Vastian Learning
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Continuing Education Credits

P.A.C.E.® Contact Hours: hour(s)

Florida Board of Clinical Laboratory Science CE Credit Hours

: hour(s)

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Objectives

  • Identify the axes and basic features of a red blood cell (RBC) histogram.
  • Recognize left-shifted, right-shifted, broadened, and bimodal patterns.
  • Correlate histogram findings with mean cell volume, red cell distribution width, analyzer flags, and peripheral blood morphology.
  • Recognize patterns that may indicate RBC-platelet overlap or analytical interference.

Course Outline

  • How to Read a Red Blood Cell Histogram
    • What is a Red Blood Cell Histogram?
    • Use a Systematic Reading Method
    • Step 1: Evaluate the Position
    • Step 2: Evaluate the Width
    • Step 3: Evaluate the Shape
    • Step 4: Examine the Edges and Possible Overlap
    • Common Histogram Patterns
    • Step 5: Correlate Before Interpreting
    • Case Study
    • Key Takeaways
  • References
    • References

Additional Information

This is a mini course designed to enhance learning and reinforce existing knowledge. It does not provide continuing education (CE) credit. The purpose of this course is to support ongoing professional development and review.