Polychromatic red blood cells appear bluish-gray on the blood smear.
Polychromasia is a disorder where there is an abnormally high number of immature red blood cells found in the bloodstream as a result of being prematurely released from the bone marrow during blood formation (poly- refers to many, and -chromasia means color.) These cells are often shades of grayish-blue. Polychromasia is usually a sign of bone marrow stress as well as immature red blood cells. 3 types are recognized, with types 1 and 2 being referred to as 'young red blood cells' and type 3 as 'old red blood cells'. Giemsa stain is used to distinguish all three types of blood smears.[1] The young cells will generally stain gray or blue in the cytoplasm. These young red blood cells are commonly called reticulocytes. All polychromatophilic cells are reticulocytes, however, not all reticulocytes are polychromatophilic. In the old blood cells, the cytoplasm either stains a light orange or does not stain at all.
^Thomas, Lyell J. (1937). "On the Life Cycle of Contracaecum Spiculigerum". The Journal of Parasitology. 23 (4): 429–31. doi:10.2307/3272243. JSTOR 3272243.
Polychromasia is a disorder where there is an abnormally high number of immature red blood cells found in the bloodstream as a result of being prematurely...
Enlargement Pleomorphism Nuclear polychromasia, which means variability in nuclear chromatin content. Polychromasia otherwise refers to a disease of immature...
findings are generally unremarkable, except after 12 to 24 hrs where polychromasia appears. For reduced production of RBCs, like with low erythropoietin...
of an already fixed cell (e.g. "reticulocyte" look versus diffuse "polychromasia"). To achieve desired effects, the stains are used in very dilute solutions...
the corrected count by a factor of 2 (or multiply with ½) whenever polychromasia (the presence of immature marrow reticulocytes or "shift" cells) is...
Newly formed RBCs are usually slightly larger than older RBCs and show polychromasia. Even where the source of blood loss is obvious, evaluation of erythropoiesis...
haemofelis infection is suspected in cats with regenerative anemia, in which polychromasia and reticulocytosis are noted. During the acute phase of infection,...
a retrospective exhibition of his works. Called "Ficre Ghebreyesus: Polychromasia" and held at Artspace, it displayed the range and depth of his art....
subtle in the acute phase. Peripheral blood smear may show corresponding polychromasia. Neutrophil erythrophagocytosis is suggestive of PCH, while the absence...
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