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  2. Polycythemia - Wikipedia

    en.wikipedia.org/wiki/Polycythemia

    Primary polycythemias are myeloproliferative diseases affecting red blood cell precursors in the bone marrow. Polycythemia vera (PCV) (a.k.a. polycythemia rubra vera (PRV)) occurs when excess red blood cells are produced as a result of an abnormality of the bone marrow. [3] Often, excess white blood cells and platelets are also produced.

  3. Red blood cell - Wikipedia

    en.wikipedia.org/wiki/Red_blood_cell

    Red blood cells (RBCs), referred to as erythrocytes (from Ancient Greek erythros 'red' and kytos 'hollow vessel', with -cyte translated as 'cell' in modern usage) in academia and medical publishing, also known as red cells, [1] erythroid cells, and rarely haematids, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O 2) to the body tissues—via ...

  4. Macrocytic anemia - Wikipedia

    en.wikipedia.org/wiki/Macrocytic_anemia

    Macrocytic anemia is a class of anemia characterized by the presence of predominantly larger-than-normal red blood cells (RBC, also known as erythrocytes) accompanied by low numbers of RBC and often also with insufficient hemoglobin content per cell. Macrocytic anemia occurs when – despite the larger cell size – such factors result in ...

  5. Anemia - Wikipedia

    en.wikipedia.org/wiki/Anemia

    A strict but broad definition is an absolute decrease in red blood cell mass, [61] however, a broader definition is a lowered ability of the blood to carry oxygen. [62] An operational definition is a decrease in whole-blood hemoglobin concentration of more than 2 standard deviations below the mean of an age- and sex-matched reference range. [63]

  6. Rh blood group system - Wikipedia

    en.wikipedia.org/wiki/Rh_blood_group_system

    The gene codes for the RhD protein on the red blood cell membrane. D− individuals who lack a functional RHD gene do not produce the D antigen and may be immunized by D+ blood. [citation needed] The D antigen is a dominant trait. If both of a child's parents are Rh negative, the child will definitely be Rh negative.

  7. Blood cell - Wikipedia

    en.wikipedia.org/wiki/Blood_cell

    Red blood cells or erythrocytes pors carry oxygen and collect carbon dioxide through the use of hemoglobin. [2] Hemoglobin is an iron-containing protein that gives red blood cells their color and facilitates transportation of oxygen from the lungs to tissues and carbon dioxide from tissues to the lungs to be exhaled. [3]

  8. Mean corpuscular volume - Wikipedia

    en.wikipedia.org/wiki/Mean_corpuscular_volume

    The mean corpuscular volume, or mean cell volume (MCV), is a measure of the average volume of a red blood corpuscle (or red blood cell). The measure is obtained by multiplying a volume of blood by the proportion of blood that is cellular (the hematocrit), and dividing that product by the number of erythrocytes (red

  9. Erythropoiesis - Wikipedia

    en.wikipedia.org/wiki/Erythropoiesis

    A feedback loop involving erythropoietin helps regulate the process of erythropoiesis so that, in non-disease states, the production of red blood cells is equal to the destruction of red blood cells and the red blood cell number is sufficient to sustain adequate tissue oxygen levels but not so high as to cause sludging, thrombosis, or stroke ...