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Whole blood ( WB) is human blood from a standard blood donation. [ 1] It is used in the treatment of massive bleeding, in exchange transfusion, and when people donate blood to themselves. [ 1][ 2] One unit of whole blood (~517 mls) brings up hemoglobin levels by about 10 g/L. [ 3][ 4] Cross matching is typically done before the blood is given ...
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. [ 1] Blood is composed of blood cells suspended in blood plasma.
A typical adult has a blood volume of approximately 5 liters, with females and males having approximately the same blood percentage by weight (approx 7 to 8%) [ 1][ 2] Blood volume is regulated by the kidneys . Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV ...
A massive transfusion protocol is used when significant blood loss is present such as in major trauma, when more than ten units of blood are needed. Packed red blood cells, fresh frozen plasma, and platelets are generally administered. [129] Typical ratios of fresh frozen plasma, platelets and packed red blood cells are between 1:1:1 and 1:1:2 ...
none. Packed red blood cells, also known as packed cells, are red blood cells that have been separated for blood transfusion. [1] 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 ...
Phlebotomy is the process of making a puncture in a vein, usually in the arm, with a cannula for the purpose of drawing blood. [ 1] The procedure itself is known as a venipuncture, which is also used for intravenous therapy. A person who performs a phlebotomy is called a phlebotomist, although most doctors, nurses, and other technicians can ...
A unit of donated fresh plasma. Blood plasma is a light amber -colored liquid component of blood in which blood cells are absent, but which contains proteins and other constituents of whole blood in suspension. It makes up about 55% of the body's total blood volume. [ 1] It is the intravascular part of extracellular fluid (all body fluid ...
A blood cell (also called a hematopoietic cell, hemocyte, or hematocyte) is a cell produced through hematopoiesis and found mainly in the blood. Major types of blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Together, these three kinds of blood cells add up to a total 45% of the ...