This document discusses red blood cell (RBC) histograms and abnormalities seen in various conditions. It includes histograms showing normal RBC distribution as well as abnormalities seen in conditions like thalassemia major, iron deficiency, and after iron therapy or blood transfusion. The document is authored by Caesar Abu Arra and focuses on interpreting RBC histogram patterns in disease.

1. RBC Histogram
Caesar Abu Arra
MSc Life sciences
BSc Medical lab. Sciences
Medicare Labs

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15. Thalassemia major WBC / RBC / PLT
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 Normal curve

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 Normal curve

26. Advanced iron deficiency
↑↑RDW RDW base very wide
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Normal curve

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29. After iron therapy-Early recovery
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↑↑RDW RDW base very wide (MP)

30. After iron therapy-Advanced recovery
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↑↑RDW RDW base very wide (MP)

31. After iron therapy-Advanced recovery
(Other form approx. full recovery)
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↑RDW wide RDW base

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Normal curve

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Macrocytes / Hypersegmentation

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39. After blood transfusion-Dimorphic
↑↑↑RDW RDW base very wide (MP)
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42. RBCs fragmentation
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Before incubation at 37 °C

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After incubation at 37 °C

46. THANK YOU
A B U J A D C A E S A R