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These tests are used to describe certain atypical colours of red blood cells examined under the microscope in an abnormal complete blood count.

Polychromasia – Great variation in the colour of the red blood cells, including pale red, normal or dark colours, indicating a highly variable hemoglobin level. Seen in anemias with regeneration of red blood cells.

Term of the Week

Hot zone

A hot zone is a section of a facility (sometimes an entire facility or even a city district) where there is a high risk of contamination by patients with an infectious disease. All individuals entering a hot zone must respect appropriate protective measures. By analogy, “cold zone” and “warm zone” are used to refer to areas where there is no infected individual or only individuals suspected of having an infection.