Test Catalog

Test ID: GLSF    
Glucose, Spinal Fluid

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

Patient specimen is deposited on the slide where the spreading layer promotes the uniform distribution of the specimen and permits an even penetration of solute molecules into the underlying reagent layer. The oxidation of specimen glucose is catalyzed by glucose oxidase to form hydrogen peroxide and gluconate. The reaction is followed by an oxidative coupling catalyzed by peroxidase in the presence of dye precursors to produce a dye. The intensity of the dye is measured by reflected light.


Each mole of glucose oxidized results in 0.5 mole of dye, assuming quantitative conversions. The intensity of the dye is measured by reflected light at 540 nm and concentration is reported in milligrams per deciliter.(Package insert: Vitros Chemistry Products Instructions for Use-GLU Slides, Ortho-Clinical Diagnostics, Inc. Rochester, NY 14626)

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


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 Sunday; Continuously


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.

Same day/1 day

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

1 day

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

1 week

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