| BLS | bare lymphocyte syndrome; basic life support; blind loop syndrome; blood and lymphatic system; blood... |
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| BLT | bleeding time; blood-clot lysis time; blood test |
| BlV | blood viscosity; blood volume |
| BT | base of tongue; bedtime; bitemporal; bitrochanteric; bladder tumor; Blalock-Taussig [shunt]; bleedin... |
| BV | bacitracin V; bacterial vaginosis; biological value; blood vessel; blood volume; bronchovesicular |
| blood grouping and crossmatching | Testing erythrocytes to determine presence or absence of blood-group antigens, testing of serum to determine the presence or absence of antibodies to these antigens, and selecting biocompatible blood by crossmatching samples from the donor against samples from the recipient. Crossmatching is performed prior to transfusion. (12 Dec 1998) |
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| blood group substance | Blood group-specific substances A and B, solution of complexes of polysaccharides and amino acids that reduces the titre of anti-A and anti-B isoagglutinins in serum from group O persons; used to render group O blood reasonably safe for transfusion into persons of group A, B, or AB, but does not affect any incompatibility that results from various other factors, such as Rh. (05 Mar 2000) |
| blood haemopathies | A group of disease states which primarily involve the bone marrow and the production blood cells. Examples include polycythaemia vera, leukaemia, myelofibrosis and primary thrombocytopenia. (27 Sep 1997) |
| blood island | An aggregation of splanchnic mesodermal cells on the embryonic yolk sac, with the potentiality of forming vascular endothelium and primitive blood cells. Synonym: blood islet. (05 Mar 2000) |
| blood islet | An aggregation of splanchnic mesodermal cells on the embryonic yolk sac, with the potentiality of forming vascular endothelium and primitive blood cells. Synonym: blood islet. (05 Mar 2000) |
| blood loss, surgical | Loss of blood during surgery. (12 Dec 1998) |
| blood lymph | Lymph exuded from the blood vessels and not derived from the fluid in the tissue spaces. (05 Mar 2000) |
| blood mole | A uterine mass occurring after foetal death and consisting of blood clots, foetal membranes, and placenta. Synonym: blood mole, carneous mole. (05 Mar 2000) |
| blood money | 1. Money paid to the next of kin of a person who has been killed by another. 2. Money obtained as the price, or at the cost, of another's life; said of a reward for supporting a capital charge, of money obtained for betraying a fugitive or for committing murder, or of money obtained from the sale of that which will destroy the purchaser. Source: Websters Dictionary (01 Mar 1998) |
| blood motes | Small refractive particles in the circulating blood, probably lipid material associated with fragmented stroma from red blood cells. Synonym: blood dust, blood motes, dust corpuscles. Origin: haemo-+ G. Konis, dust (05 Mar 2000) |
| blood patch, epidural | The injection of autologous blood into the epidural space either as a prophylactic treatment immediately following an epidural puncture or for treatment of headache as a result of an epidural puncture. (12 Dec 1998) |
| blood pH | PH of arterial blood; normal is 7.4 (normal range 7.36-7.44). (05 Mar 2000) |
| blood physiology | Observable characteristics of blood activities and functions, such as blood groups, coagulation processes, etc. (12 Dec 1998) |
| blood plasma | <haematology> Acellular fluid in which blood cells are suspended. Serum obtained by defibrinating plasma (plasma derived serum) lacks platelet released factors and is less suitable to support the growth of cells in culture. (13 Oct 1997) |
| blood plasma fractions | Portions of the blood plasma as separated by electrophoresis or other technique. (05 Mar 2000) |