| MAC | MacConkey [broth]; major ambulatory category; malignancy-associated changes; maximum allowable conce... |
|---|---|
| MCP | maximum closure pressure; maximum contraction pattern; malanocortin receptor; melphalan, cyclophosph... |
| MDP | manic-depressive psychosis; maximum diastolic potential; maximum digital pulse; methylene diphosphat... |
| MIP | macrophage inflammatory protein; major intrinsic protein; maximum inspiratory pressure; maximum inte... |
| MMF | maxillomandibular fixation; maximum midexpiratory flow; mean maximum flow; Member of the Medical Fac... |
| urea | <biochemistry> The final nitrogenous excretion product of many organisms. (18 Nov 1997) |
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| urea breath test | A test for the presence of the bacteria helicobacter pylori that causes inflammation and ulcers in the stomach. The breath test is based on the ability of h. Pylori to break down urea. Ten minutes after swallowing a capsule containing urea with labelled carbon, a breath sample is collected to detect labelled carbon in the exhaled breath. A positive test indicates active infection. The test turns negative after eradication of the bacteria from the stomach with antibiotics. (12 Dec 1998) |
| urea cycle | The metabolic pathway isfound in vertebrates and takes place in theliver, in it, urea is synthesised from amino acids and carbon dioxide. (09 Oct 1997) |
| urea peroxide | CH4N2O-H2O2;a white crystalline compound used in an aqueous solution as an oxidizing mouthwash. (05 Mar 2000) |
| urea stibamine | A urea derivative of stibanilic acid, used in the treatment of kala azar and certain other tropical diseases. (05 Mar 2000) |
| amylase-creatinine clearance ratio | A test for the diagnosis of acute pancreatitis; it is determined by measuring amylase and creatinine in serum and urine in apparently healthy individuals the renal clearance of amylase is less than 5% that of creatinine; in acute pancreatitis the ratio is said to be greater than 0.05 or 5%. (05 Mar 2000) |
| ANP clearance receptors | Cell surface proteins that bind atrial natriuretic peptide and ANP fragments without initiating biological action. (05 Mar 2000) |
| p-aminohippurate clearance | A good measure of renal plasma flow, which it slightly underestimates; when a low plasma concentration of p-aminohippurate (PAH) is maintained by intravenous infusion, the kidney extracts and excretes almost all of the PAH from the plasma before it reaches the renal vein. (05 Mar 2000) |
| metabolic clearance rate | Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site. (12 Dec 1998) |
| clearance | 1. The process of clearing. 2. <physiology> The rate at which a substance is removed from the blood. (18 Nov 1997) |
| mucociliary clearance | Rate of ciliary and secretory activity of the respiratory submucosal glands. It is a non-specific host defense mechanism, measurable in vivo by mucus transfer, ciliary beat frequency, and clearance of radioactive tracers. (12 Dec 1998) |
| creatinine clearance | Measurement of the clearance of endogenous creatinine, used for evaluating the glomerular filtration rate (GFR). (05 Mar 2000) |
| creatinine clearance test | <investigation, nephrology> A test of the amount of creatinine in blood or in blood and urine shows if the kidneys are working right or if one or both are diseased. (09 Oct 1997) |
| steroid metabolic clearance rate | A measure of the rate of metabolism of a given steroid within the body, usually expressed as liters of body fluid that contain the amount of steroid metabolised per day. (05 Mar 2000) |
| interocclusal clearance | The space between the occluding surfaces of the maxillary and mandibular teeth when the mandible is in physiologic resting position. Synonym: interocclusal clearance, interocclusal distance, interocclusal gap, interocclusal rest space. (05 Mar 2000) |