| MRF | Markov random field; medical record file; melanocyte-[stimulating hormone]-releasing factor; mesence... |
|---|---|
| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| PTC | 1) Percutaneous Transhepatic Cholangiography = PTHC ... |
| PPF | pellagra preventive factor; phagocytosis promoting factor; phosphonoformate; plasma protein fraction... |
| plasma renin activity | The estimation of renin in plasma by measuring the rate of formation of angiotensin I or II. (05 Mar 2000) |
|---|---|
| plasma scalpel | A scalpel that uses a fine high-temperature gas jet, instead of a blade, for cutting. (05 Mar 2000) |
| plasma stain | <technique> Plasmatic stainplasmic stain, a stain whose principal affinity is for the cytoplasm of cells. (05 Mar 2000) |
| plasma substitute | A solution of a substance (e.g., dextran) used for transfusion in haemorrhage or shock as a substitute for plasma. Synonym: plasma expander. (05 Mar 2000) |
| plasma substitutes | Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration. (12 Dec 1998) |
| plasma therapy | Treatment with plasma. (05 Mar 2000) |
| plasma thromboplastin antecedent | <chemical> Stable blood coagulation factor involved in the intrinsic pathway. The activated form xia activates factor ix to ixa. Deficiency of factor xi is often called haemophilia c. Chemical name: Blood-coagulation factor XI (12 Dec 1998) |
| plasma thromboplastin component | <chemical> Storage-stable blood coagulation factor acting in the intrinsic pathway. Its activated form, ixa, forms a complex with factor viii and calcium on platelet factor 3 to activate factor x to xa. Deficiency of factor ix results in christmas disease (haemophilia b). Chemical name: Blood-coagulation factor IX (12 Dec 1998) |
| plasma volume | Volume of plasma in the circulation. It is usually measured by indicator dilution techniques. (12 Dec 1998) |
| plasma wave | <physics> A disturbance of a plasma away from equilibrium, involving oscillations of the plasma's constituent particles and of an electromagnetic field. Plasma waves can propagate from one point in the plasma to another without net motion of the plasma. (09 Oct 1997) |
| muscle plasma | An alkaline fluid in muscle that is spontaneously coagulable, separating into myosin and muscle serum. (05 Mar 2000) |
| core plasma | <radiobiology> Hot plasma at the centre of a fusion reactor, distinguished from edge plasma and scrape-off layer (SOL). The core plasma does not directly feel the effects of the divertor or limiter in the way the edge plasma does. (09 Oct 1997) |
| pregnancy-associated alpha-plasma protein | An alpha 2-macroglobulin, molecular weight approximately 750,000 now believed to be a pregnancy-specific protein. Its plasma levels increase steadily during the second trimester and continue to rise until the end of gestation. (12 Dec 1998) |
| pregnancy-associated beta-plasma protein | A beta-globulin now believed to be a pregnancy-specific protein. Its plasma levels increase steadily during pregnancy until the end of gestation. (12 Dec 1998) |
| salted plasma | The fluid portion of blood drawn from the vessels, which is prevented from coagulating by being drawn into a solution of sodium or magnesium sulfate. Synonym: salted serum. (05 Mar 2000) |