percolation test

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percolation test

[pər·kə′lā·shən ‚test]
(civil engineering)
A test to determine the suitability of a soil for the installation of a domestic sewage-disposal system, in which a hole is dug and filled with water and the rate of water-level decline is measured.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

percolation test

A test to determine the rate at which a particular soil absorbs effluent; a hole is dug in the soil and filled with water, then the rate at which the water level drops is measured. (See illustration p. 716.)
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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It is recommended that, in patients felt to be at low risk and whose PERC test is negative, then no other workup should be done.
If the PERC test is positive, then low-risk patients should undergo a highly sensitive D-dimer test.