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Test ID: CLF    
Chloride, Random, Feces

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Method Description Describes how the test is performed and provides a method-specific reference

Silver ions, generated at a constant rate of coulometric circuit, precipitate chloride as silver/chloride (AgCl). A slight over-titration to a fixed excess of free silver ions produces an automatic end point by the action of amperometric and relay circuits which stop a concurrently running timer. Chloride (Cl-) is determined by the amount of silver ions which are combined, as measured by the elapsed time of silver ion generation minus a fixed slight excess which is measured by titration of a reagent blank. (Scott MG, Heusel JW, LeGrys VA, Siggaard-Andersen O: Electrolytes and blood gasses. In Tietz Textbook of Clinical Chemistry. 3rd edition. Edited by CA Burtis, ER Ashwood. Philadelphia, WB Saunders Company, 1999, p 1064)

Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.

Monday through Friday, evening

Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.

2 days

Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result

5 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

2 days

Performing Laboratory Location The location of the laboratory that performs the test

Rochester