nuclear heart scan (medicine) and fourth (iou)

nuclear heart scan (medicine)

nuclear heart scan

This noninvasive test uses radioactive tracers to delineate the hearts chambers and major vessels. It may be used to detect a heart attack, heart muscle function and coronary artery disease. The patient receives a radioactive tracer by injection (into a vein) and then the heart is imaged using a gamma camera. The heart is imaged before and after Exercise. This test may be used to detect and evaluate atrial septal defect, dilated cardiomyopathy, congestive heart failure, cardiomyopathy, Lyme disease (secondary), mitral stenosis and superior vena cava syndrome.

fourth (iou)

fourth adjective, noun, & adverb (ordinal numeral).
[Old English feo(we)rTa = Old Saxon fiortho (Dutch vierde), Old High German fiordo (German vierte), Old Norse fjorei, from Germanic from Indo-European, whence also Latin quartus, German tetartos, Sanskrit caturtha.]
A. adjective. Next in order after the third, that is number four in a series, (represented by 4th). OE.
fourth day Wednesday. fourth dimension a property of bodies that would make them be to solids as solids are to surfaces; Physics time viewed as a quality resembling a length. fourth estate: see ESTATE noun. fourth finger the finger fourth from the thumb, the little finger. fourth gear the fourth in a sequence of forward gears in a motor vehicle, bicycle, etc. fourth-generation adjective (of a computer) distinguished by large-scale integrated-circuit technology and very large rapid-access memory and belonging essentially to the post-1970 period. fourth part arch. = sense B.3 below. fourth position Ballet the position, esp. when starting or finishing a step, in which the feet are placed turned outwards one in front of the Other, separated by the distance of one step; the corresponding position of the arms. fourth wall Theatrical a proscenium opening through which a stage is seen. Fourth World those countries considered to be the poorest and most underdeveloped of the Third World.
b. noun.
The fourth person or thing of a category, series, etc., identified contextually, as day of the month, (following a proper name) person, esp. monarch or pope, of the specified name, etc. ME.
Fourth of July, Glorious Fourth: the anniversary of the Declaration of Independence of the United States (1776). J. Gardner Selecting the Mahler Fourth.
S. Sturmy Three Right Lines being given, To find a fourth in proportion to them. J. O'Hara He..had three quick Drinks and was on his fourth.
b. A person making up a foursome for a game, social event, etc. E19.
T. S. Eliot Wanting a fourth at bridge.
c. (A person having) a place in the fourth class in an examination list. E20.
C. L. Wrenn The consciousness in the minds of the Oxford authorities that Sweet had obtained a 'fourth' in greats.
d. = fourth gear above. E20.
Music. An interval embracing four consecutive notes in the diatonic scale; a note a fourth above another given note; a chord of two notes a fourth apart, or based around the fourth of a note. L16.
Each of four equal parts into which something is or may be divided, a fraction which when multiplied by four gives one, a quarter, (= fourth part above). L16.
third-and-fourth, thirds-and-fourths: see THIRD noun 2.
Scientific American Mortality during Pregnancy and delivery may account for a fourth of the deaths.
Comb.: Forming compound ordinal numerals with multiples of ten, as fifty-fourth (54th), five-thousand-and-fourth (5004th), etc.
C. adverb. Fourthly. L15.
fourthly adverb in the fourth place E16.

Sites

Pest Star