| MC | mass casualties; mast cell; Master of Surgery [Lat. Magister Chirurgiae]; maximum concentration; Med... |
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| MCh | Master of Surgery [Lat. Magister Chirurgiae]; methacholine |
| MChD | Master of Dental Surgery |
| MChir | Master in Surgery [Lat. Magister Chirurgiae] |
| MChOrth | Master of Orthopaedic Surgery |
| Marshall-Marchetti test | Manual deviation of bladder neck during strain or cough to ascertain presence of stress urinary incontinence. Synonym: Bonney test, Marshall-Marchetti test. (05 Mar 2000) |
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| Marshall test | Manual deviation of bladder neck during strain or cough to ascertain presence of stress urinary incontinence. Synonym: Bonney test, Marshall-Marchetti test. (05 Mar 2000) |
| Gerhardt's test for acetoacetic acid | In fresh urine a red colour develops upon addition of FeCl3; no colour develops if the urine has first been boiled; this test has low specificity and sensitivity. Synonym: Gerhardt's reaction. (05 Mar 2000) |
| Gerhardt's test for urobilin in the urine | The urobilin is extracted with chloroform and then treated with iodine and potassium hydrate, a fluorescent green colour being produced. (05 Mar 2000) |
| carotid sinus test | Stimulation of one carotid sinus (never both) to produce reflex effects that may slow the heart, reduce the systolic blood pressure or both for diagnostic or, in the case of certain arrhythmias, therapeutic purposes. (05 Mar 2000) |
| germ tube test | A test for the identification of Candida albicans; after a 3-hr incubation in serum, an inoculum of Candida develops tubelike appendages. (05 Mar 2000) |
| carrier test | A test designed to detect carriers of a gene for recessive genetic disorder. For example, carrier testing is done for sickle cell trait, thalassaemia trait, and the Tay-Sachs gene. (12 Dec 1998) |
| Carr-Price test | A quantitative test for vitamin A based on the reaction with antimony trichloride in chloroform. (05 Mar 2000) |
| red cell adherence test | The diagnostic application of the immune adhesion phenomenon. Synonym: erythrocyte adherence test, immune adhesion test, red cell adherence test. (05 Mar 2000) |
| Casoni intradermal test | A test for hydatid disease in which hydatid fluid is injected intracutaneously; immediate or delayed wheal and flare reaction is positive. Synonym: Casoni skin test. (05 Mar 2000) |
| Casoni skin test | A test for hydatid disease in which hydatid fluid is injected intracutaneously; immediate or delayed wheal and flare reaction is positive. Synonym: Casoni skin test. (05 Mar 2000) |
| red test | An obsolete test for renal function; after the patient has drunk a glass or two of water, 1 ml of a 0.6% solution of dye is injected hypodermically; the time between this injection and the appearance of a pink tinge in the urine as it falls into an alkaline solution is noted; the amount excreted in each of the next 2 hours is then estimated colourimetrically. Synonym: Geraghty's test, phthalein test, red test, Rowntree and Geraghty test. (05 Mar 2000) |
| viability test | <investigation> Test to determine the proportion of living individuals, cells or organisms, in a sample. Viability tests are most commonly performed on cultured cells and usually depend on the ability of living cells to exclude a dye, (an exclusion test) or to specifically take it up (inclusion test). (18 Nov 1997) |
| Mauthner's test | An obsolete test for colour perception similar to Holmgren's, but made with vials filled with pigments instead of with skeins of wool. (05 Mar 2000) |
| maximal Histalog test | A test for measurement of maximal production of gastric acidity or anacidity; it is similar to the histamine test, but uses Histalog (betazole hydrochloride), an analogue of histamine. Synonym: maximal Histalog test. (05 Mar 2000) |