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Test ID: VS
Vanadium, Serum

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

Aqueous acidic calibrating standards with serum matrix are diluted with an aqueous nitric acid diluent containing a gallium internal standard. Specimens are then aspirated into a pneumatic nebulizer and the resulting aerosol is directed to the hot plasma discharge by a flow of argon. In the annular plasma, the aerosol is vaporized, atomized, and then ionized. The ionized gasses plus neutral species formed in the annular plasma space are aspirated from the plasma through an orifice into a quadrapole mass spectrometer. The mass range from 1 amu to 263 amu is rapidly scanned multiple times and ion counts tabulated for m/z 51 (vanadium) and 69 (gallium). Instrument response is defined by the linear relationship of analyte concentration versus ion count ratio (analyte ion count/internal standard ion count). Analyte concentrations are derived by reading the ion count ratio for each mass of interest and determining the concentration from the response line. (Nixon DE, Neubauer KR, Eckdahl SJ, et al: Evaluation of a tunable bandpass reaction cell for an inductively coupled plasma mass spectrometer for the determination of chromium and vanadium in serum and urine. Spectrochim Acta Part B At Spectrosc 2002;57[5];951-966)

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.

Tuesday, Friday; Afternoon and 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.

1 day

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

6 days

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

7 days

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

Rochester