Blood disorders

Leukopenia () is a decrease in the number of white blood cells (leukocytes). It places individuals at increased risk of infection as white blood cells are the body's primary defense against infections.

Human disease

Neutropenia is an abnormally low concentration of neutrophils (a type of white blood cell) in the blood. Neutrophils make up the majority of circulating white blood cells and serve as the primary defense against infections by destroying bacteria, bacterial fragments and immunoglobulin-bound viruses in the blood. People with neutropenia are more susceptible to bacterial infections and, without prompt medical attention, the condition may become life-threatening (neutropenic sepsis).

Leukocytosis is a condition in which the white cell (leukocyte) count is above the normal range in the blood. It is frequently a sign of an inflammatory response, most commonly the result of infection, but may also occur following certain parasitic infections or bone tumors as well as leukemia. It may also occur after strenuous exercise, convulsions such as epilepsy, emotional stress, pregnancy and labor, anesthesia, as a side effect of medication (e.g., lithium), and epinephrine administration. There are five principal types of leukocytosis: neutrophilia (the most common form), lymphocytosis,

Hypovolemia, also known as volume depletion or volume contraction, is a state of abnormally low extracellular fluid in the body. This may be due to either a loss of both salt and water or a decrease in blood volume. Hypovolemia refers to the loss of extracellular fluid and should not be confused with dehydration.

problem with Rh+ fetuses in Rh- mothers

medical condition

Aplasia (; from Greek a, "not", "no" + plasis, "formation") is a birth defect where an organ or tissue is wholly or largely absent. It is caused by a defect in a developmental process.

complement deficiency that is characterized by mechanical hemolytic anemia, thrombocytopenia, and renal dysfunction

Pancytopenia is a medical condition in which there is significant reduction in the number of almost all blood cells (red blood cells, white blood cells, platelets, monocytes, lymphocytes, etc.).

Hemoglobinopathy is the medical term for a group of inherited blood disorders involving the hemoglobin, the major protein of red blood cells. They are generally single-gene disorders and, in most cases, they are inherited as autosomal recessive traits.

syndrome characterized by exocrine pancreatic insufficiency, bone marrow failure and skeletal abnormalities

Cytopenia is a reduction in the number of mature blood cells. It can have many causes, and commonly occurs in people with cancer being treated with radiation therapy or chemotherapy. == Types == Anemia – a reduction of the red blood cells in the body. Leukopenia – a deficiency of white blood cells, or leukocytes Neutropenia – a type of leukopenia, with a specific deficiency in neutrophils Thrombocytopenia – a deficiency of platelets Pancytopenia – when all three types of blood cells; red blood cells, white blood cells, and platelets, are all deficient. This is a life-threatening disorder

disorder which primarily affects the blood

medical condition

family known for having blue skin

hepatic vascular disease that is characterized by obstruction of some of the small veins of the liver

thumb|right|blood film in a patient with [[hereditary elliptocytosis: approximately 60% to 70% of the RBCs are elliptocytes.]] thumb|Elliptocyte compared to other forms of poikilocytosis.

Human disease

medical condition

the combination of hypothermia, acidosis and coagulopathy often seen in severe trauma cases

Human disease

Wikimedia list article

Leukostasis (also called symptomatic hyperleukocytosis) is a medical emergency most commonly seen in patients with acute myeloid leukemia. It is characterized by an extremely elevated blast cell count and symptoms of decreased tissue perfusion. The pathophysiology of leukostasis is not well understood, but inadequate delivery of oxygen to the body's cells is the result. Leukostasis is diagnosed when white cell plugs are seen in the microvasculature. The most common symptoms are dyspnea and hypoxia, usually accompanied by visual changes, headaches, dizziness, confusion, somnolence, and coma. Pr