Author: Glossary
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Diaphragmatic flutter
Rapid contractions of the diaphragm. They may occur intermittently or be present for an extended period. The cause is unknown.
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Malar flush
A bright-colored flush over the malar area and cheekbones. It may be associated with any febrile disease. A pronounced coloration on the cheekbones, tinged with blue due to lowered oxygen levels in the blood, is termed a malar flush. It’s often seen as an indicator of mitral stenosis, a constriction of one of the heart…
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Fluorophores
A substance that tends to fluoresce, such as fluorescein.
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Fluorometer
A device for determining the amount of radiation produced by x-rays. The device employed for assessing the magnitude of x-rays and other forms of radiation operates by gauging the degree of fluorescence generated.
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Fluoride dental treatment
The application of a fluoride solution or gel to the teeth as a means of controlling or preventing caries.
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Stannous fluoride
An unstable acidic fluoride solution, SnF2, used to prevent dental caries. It has traditionally been used in some dentifrices and has a bitter, metallic taste.
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Acidulated phosphate fluoride
A fluoride compound used to prevent dental caries, available in solution and gel. It has often been used by dental professionals as a cariostatic agent.
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Fluorescent treponemal antibody absorption test
A test for syphilis using the fluorescent antibody technique that is used to confirm a positive rapid plasma reagin, or Venereal Disease Research Laboratory test.
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Fluorescent screen
A sheet of cardboard, paper, or glass coated with a material that fluoresces visibly, such as calcium tungstate. It is used in fluoroscopy, in which electromagnetic radiation cause the object being examined to cast a shadow. The emission of light from crystals of certain substances, such as barium platinacyanide, calcium tungstate, and rare earth, which…
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Fluorescence polarization immunoassay
A means of identifying and quantifying the amount of an antigen in a specimen in which a fluorescently labeled antibody is mixed with a sample thought to contain the antigen is exposed to polarized light. Bound fluorescently labeled antibody reacts to polarized light in a characteristic fashion not demonstrated by unbound antibody, allowing for identification…