| PBM | peak bone mass; peripheral basement membrane; peripheral blood mononuclear [cell]; placental basemen... |
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| PE | Edinburgh Pharmacopoeia; pancreatic extract; paper electrophoresis; partial epilepsy; pelvic examina... |
| PL | palmaris longus; pancreatic lipase; perception of light; peroneus longus; phospholipase; phospholipi... |
| PLAP | placental alkaline phosphatase |
| PLH | placental lactogenic hormone |
| transfusion reaction | A reaction to a blood transfusion secondary to some incompatibility in type, RH factor or other surface antigens. May be manifest by haemolytic anaemia, heart failure, and-or renal failure. Symptoms include facial flushing, angioedema, headache, wheezing, anaphylaxis, shock, fever, chills and breathing difficulty. (27 Sep 1997) |
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| erythrocyte transfusion | The transfer of erythrocytes from a donor to a recipient or reinfusion to the donor. (12 Dec 1998) |
| twin-twin transfusion | Direct vascular anastomosis, arterial or venous, between the placental circulations of twins. (05 Mar 2000) |
| exchange transfusion | Removal of most of a patient's blood followed by introduction of an equal amount from donors. Synonym: exsanguination transfusion, substitution transfusion, total transfusion. (05 Mar 2000) |
| exchange transfusion, whole blood | Repetitive withdrawal of small amounts of blood and replacement with donor blood until a large proportion of the blood volume has been exchanged. Used in treatment of foetal erythroblastosis, hepatic coma, sickle cell anaemia, disseminated intravascular coagulation, septicaemia, burns, thrombotic thrombopenic purpura, and fulminant malaria. (12 Dec 1998) |
| exsanguination transfusion | Removal of most of a patient's blood followed by introduction of an equal amount from donors. Synonym: exsanguination transfusion, substitution transfusion, total transfusion. (05 Mar 2000) |
| fetofetal transfusion | <biology>Passage of blood from one foetus to another via an arteriovenous communication or other shunt, in a monozygotic twin pregnancy. It results in anaemia in one twin and polycythemia in the other. (12 Dec 1998) |
| fetomaternal transfusion | <biology> Transplacental passage of foetal blood into the circulation of the maternal organism. (12 Dec 1998) |
| leukocyte transfusion | The transfer of leukocytes from a donor to a recipient or reinfusion to the donor. (12 Dec 1998) |
| lymphocyte transfusion | The transfer of lymphocytes from a donor to a recipient or reinfusion to the donor. (12 Dec 1998) |
| abnormal placental size | <radiology> TOO BIG (greater than5cm in sections obtained at right angles to the long axis), maternal disease, diabetic mothers (= villous oedema), intrauterine infections, anaemic mothers (= normal histology), foetal disease, erythroblatosis foetalis (= villous oedema and hyperplasia), umbilical vein obstruction, foetal high output failure, large chorioangioma, sacrococcygeal teratoma, arteriovenous fistula too small, preeclampsia (associated with placental infarcts in 33-60%) (12 Dec 1998) |
| placental | 1. Of or pertaining to the placenta; having, or characterised by having, a placenta; as, a placental mammal. 2. <zoology> Of or pertaining to the Placentalia. <zoology> One of the Placentalia. Source: Websters Dictionary (01 Mar 1998) |
| placental abruption | <obstetrics> An third trimester complication that results from the haemorrhage and accumulation of blood between the placenta and the wall of the uterus. This inevitably interferes with foetal oxygenation and often necessitates the need for emergency cesarean section delivery. (31 Dec 1997) |
| placental barrier | The semipermeable layer of foetal tissue separating the maternal from the foetal blood in the placenta; composed of: 1) endothelium of the foetal vessels in the chorionic villi, 2) stromata of the villi, 3) cytotrophoblast (negligible after the fifth month of gestation), and 4) syncytial trophoblast covering the villi; the placental membrane acts as a selective membrane regulating passage of substances from the maternal to the foetal blood. Synonym: placental barrier. (05 Mar 2000) |
| placental calcium-binding protein | <protein> Calcium binding protein of placenta, uterus and vasculature containing the EF hand motif. (18 Nov 1997) |