| LPF | leukocytosis-promoting factor; leukopenia factor; lipopolysaccharide factor; localized plaque format... |
|---|---|
| lpf | low-power field |
| MAF | macrophage activation factor; macrophage agglutinating factor; maximum atrial fragmentation; minimum... |
| MF | magnetic field; meat free; medium frequency; megafarad; membrane filler; merthiolate-formaldehyde [s... |
| MFSS | Medical Field Service School |
| McMurray test | Rotation of the tibia on the femur to determine injury to meniscal structures. (05 Mar 2000) |
|---|---|
| McNemar's test | A form of chi-square test for matched paired data. (05 Mar 2000) |
| McPhail test | A test for progesterone and like substances; immature female rabbits are treated with 150 IU of estrone over a period of 6 days; the test material is then given in five daily subcutaneous doses; progestational proliferation of the endometrium is noted and the results estimated according to a scale from 0 to ++++; the amount required to produce an average (++) response is taken as a unit, equivalent to 0.25 mg of progesterone. (05 Mar 2000) |
| passive cutaneous anaphylaxis test | An animal is injected intradermally with antibody (usually IgE) and subsequently challenged intravenously with a mixture of antigen and Evans blue dye 24-48 hours later. A dark blue area indicates a positive reaction due to the leakage of the dye at the site of antigen-antibody reactions. (05 Mar 2000) |
| patch test | A test of skin sensitiveness: a small piece of paper, tape, or a cup, wet with CO non-irritating diluted test fluid, is applied to skin of the upper back or upper outer arm and after 48 hours the area previously covered is compared with the uncovered surface; an erythematous reaction with vesicles occurs if the substance causes contact allergy. See: photo-patch test. (05 Mar 2000) |
| Reinsch's test | A test for arsenic in which a strip of copper is placed in the suspected fluid, which is then acidulated with hydrochloric acid and boiled; if arsenic is present a gray deposit occurs on the copper, and this deposit on heating is sublimated and deposited as a crystalline layer on a piece of glass held above the copper strip. (05 Mar 2000) |
| Reiter test | A complement-fixation test for syphilis using as antigen material prepared from the Reiter strain of Treponema pallidum; the test has been largely replaced in laboratory medicine by the fluorescent treponemal antibody-absorption (FTA-ABS) test. (05 Mar 2000) |
| Patrick's test | A test to determine the presence or absence of sacroiliac disease; with the patient supine, the hip and knee are flexed and the external malleolus is placed above the patella of the opposite leg; this can ordinarily be done without pain, but, on depressing the knee, pain is promptly elicited in sacroiliac disease. (05 Mar 2000) |
| Paul-Bunnell test | Test for detection of heterophil antibodies in infectious mononucleosis. See: Forssman antigen. (05 Mar 2000) |
| Paul's test | Pus is rubbed into a scarification on a rabbit's eye; if the pus is from a variolous or vaccinal pustule a condition of epitheliosis develops in from 36 to 48 hours; the sputum of a smallpox patient is said to cause the same reaction. Synonym: Paul's test. (05 Mar 2000) |
| glove juice test | <investigation> A test of how effective a particular antimicrobial surgical hand scrub is at disinfecting. (09 Oct 1997) |
| vitality test | A group of thermal and electrical test's used to aid in assessment of dental pulp health. Synonym: pulp test. (05 Mar 2000) |
| PBI test | A formerly used test of thyroid function in which serum protein-bound iodine is measured to provide an estimate of hormone bound to protein in peripheral blood. Synonym: PBI test. (05 Mar 2000) |
| PCR test | <investigation> A very sensitive test that measures the presence or amount of RNA or DNA of a specific organism or virus (for example: HIV or CMV) in the blood or tissue. PCR tests such as HoffmannLa Roche's HIV RT PCR are being used to gauge HIV disease progression and the effect of particular treatments on HIV infection. (09 Oct 1997) |
| vitamin B12 absorption test | <investigation> This test measures the amount of vitamin B12 in the urine after ingesting a dose of B12. This test evaluates vitamin B12 absorption. The cells in the stomach produce a substance known as intrinsic factor. This substance combines with B12 to allow absorption in the distal ileum. The patient is given a small dose of radioactive B12 which can then be detected in the patients urine. Pernicious anaemia is the clinical result of B12 deficiency. Conditions that can result in an abnormal Schilling test include: deficiency of intrinsic factor, malabsorption or the development of an antibody to intrinsic factor. The Schilling test can be performed with or without administration of intrinsic factor to determine what the underlying cause for pernicious anaemia. Laxative use, renal insufficiency and hypothyroidism can all interfere with the results of this test. (27 Sep 1997) |