| free calcium level | <biochemistry> The ionised calcium represents the calcium (Ca++) that is the metabolically active calcium. Normal values for ionised calcium in the bloodstream should be 4.4 to 5.3 mg/dl for adults and 4.4 to 6.0 mg/dl for children. Elevations may be seen in hyperparathyroidism, metastatic bone tumour, milk-alkali syndrome, multiple myeloma, Paget's disease, sarcoidosis, PTH-secreting tumours (paraneoplastic syndrome) and vitamin D intoxication. Lower than normal values may be seen in hypoparathyroidism, malabsorption, osteomalacia, pancreatitis, renal failure, rickets and vitamin D deficiency. (27 Sep 1997) |
|---|---|
| leucovorin calcium | <drug> The calcium salt of leucovorin (folinic acid); used to counteract toxic effects of folic acid antagonists, for the treatment of megaloblastic anaemias, and as an adjunct to cyanocobalamin in pernicious anaemia. Synonym: calcium folinate. (05 Mar 2000) |
| CS2 secondary alkylsulfohydrolase | <enzyme> From comamonas terrigena Registry number: EC 3.1.6.- Synonym: cs2 sa sulfohydrolase (26 Jun 1999) |
| protein structure, secondary | The stage in the development of protein structure in which regular hydrogen-bond interactions within contiguous stretches of polypeptide chain give rise to alpha helices and beta sheets. This is the first folding level of protein building. (12 Dec 1998) |
| secondary | Second or inferior in order of time, place or importance, derived from or consequent to a primary event or thing. Origin: L. Secundarius, secundus = second (18 Nov 1997) |
| secondary abdominal pregnancy | A condition in which the embryo or foetus continues to grow in the abdominal cavity after its expulsion from the fallopian tube or other seat of its primary development. Synonym: abdominocyesis. (05 Mar 2000) |
| secondary adhesion | Delayed closure of two granulating surfaces. Synonym: secondary adhesion, secondary union. (05 Mar 2000) |
| secondary adrenocortical insufficiency | Adrenocortical insufficiency caused by failure of ACTH secretion resulting from anterior pituitary disease or inhibition of ACTH production resulting from exogenous steroid therapy. (05 Mar 2000) |
| secondary aerodontalgia | Pain referred to the dental area from an area of aerosinusitis. (05 Mar 2000) |
| secondary agammaglobulinaemia | Immunodeficiency in which there is no evident defect in the lymphoid tissues, but rather hypercatabolism or loss of immunoglobulins such as occurs in familial idiopathic hypercatabolic hypoproteinaemia or in defects associated with the nephrotic syndrome. Synonym: secondary agammaglobulinaemia, secondary antibody deficiency, secondary hypogammaglobulinaemia. (05 Mar 2000) |
| secondary alcohol | An alcohol characterised by the bivalent atom group (05 Mar 2000) |
| secondary aldosteronism | Aldosteronism resulting not from a defect intrinsic to the adrenal cortex but from a stimulation of hormonal secretion caused by extra-adrenal disorders; associated with increased plasma renin activity and occurs in heart failure, nephrotic syndrome, cirrhosis, and hypoproteinaemia. (05 Mar 2000) |
| secondary amenorrhoea | Amenorrhoea in which the menses appeared at puberty but subsequently ceased. (05 Mar 2000) |
| secondary amine monooxygenase | <enzyme> Catalyses NADH or NADPH dependent oxidative n-dealkylation of short chain aliphatic secondary amines with a methyl or ethyl group Registry number: EC 1.14.99.- Synonym: dimethylamine mono-oxygenase, secondary amine mono-oxygenase (26 Jun 1999) |
| secondary amputation | Amputation performed some time after a previous amputation that has failed to heal satisfactorily. (05 Mar 2000) |