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Transfusion-dependent anemia is a form of anemia characterized by the need for continuous blood transfusion. It is a condition that results from various diseases, and is associated with decreased survival rates. [1] [2] Regular transfusion is required to reduce the symptoms of anemia by increasing functional red blood cells and hemoglobin count.
Historically, red blood cell transfusion was considered when the hemoglobin level fell below 100g/L or hematocrit fell below 30%. [3] [4] Because each unit of blood given carries risks, a trigger level lower than that, at 70 to 80g/L, is now usually used, as it has been shown to have better patient outcomes.
The packed cells are typically used in anemia that is either causing symptoms or when the hemoglobin is less than usually 70–80 g/L (7–8 g/dL). [1] [2] [3] In adults, one unit brings up hemoglobin levels by about 10 g/L (1 g/dL). [4] [5] Repeated transfusions may be required in people receiving cancer chemotherapy or who have hemoglobin ...
Anemia or anaemia (British English) is a blood disorder in which the blood has a reduced ability to carry oxygen.This can be due to a lower than normal number of red blood cells, a reduction in the amount of hemoglobin available for oxygen transport, or abnormalities in hemoglobin that impair its function.
In children and adults red blood cell transfusion to increase the hemoglobin level to 100 g/L has been shown to decrease the risk of sickle cell-related complications. [2] However, this has not been seen in all studies, and has only been demonstrated for African haplotypes of Hemoglobin SS. [12] [13]
A 2013 study of over 400,000 people admitted to US hospitals found that 74% developed anemia at some point during their hospital stay. [5] Iatrogenic anemia is of particular concern in intensive care medicine, [6]: 629 because people who are critically ill require frequent blood tests and have a higher risk of developing anemia due to lower hemoglobin levels and impaired production of red ...
The donor's hematocrit or hemoglobin level is tested to make sure that the loss of blood will not make them anemic, and this check is the most common reason that a donor is ineligible. [34] Accepted hemoglobin levels for blood donations, by the American Red Cross, is 12.5g/dL (for females) and 13.0g/dL (for males) to 20.0g/dL, anyone with a ...
A low hematocrit level is a sign of a low red blood cell count. One way to increase the ability of oxygen transport in red blood cells is through blood transfusion, which is carried out typically when the red blood cell count is low. Prior to the blood transfusion, hematocrit levels are measured to help ensure the transfusion is necessary and safe.