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Test Code SEWB Selenium, Blood


Ordering Guidance


This test can be used to assess tissue stores of selenium. For routine assessment of selenium deficiency or toxicity, the preferred test is selenium urine.

 

For assessment of recent intake, order SES / Selenium, Serum.



Specimen Required


Patient Preparation: High concentrations of gadolinium and iodine are known to interfere with most metal tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Container/Tube: Royal blue top (EDTA) plastic trace element blood collection tube

Specimen Volume: 0.8 mL

Collection Instructions:

1. See Trace Metals Analysis Specimen Collection and Transport for complete instructions.

2. Send whole blood specimen in original tube. Do not aliquot.


Secondary ID

65600

Useful For

Assessment of tissue stores of selenium

Method Name

Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Reporting Name

Selenium, B

Specimen Type

Whole blood

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK
Microtainer Reject

Reference Values

0-17 years: not established

≥18 years: 150-241 ng/mL

Clinical Reference

1. US Department of Health and Human Services: Toxicological profile for selenium. HHS: Agency for Toxic Substances and Disease Registry; 2003. Accessed July 30, 2021. Available at www.atsdr.cdc.gov/toxprofiles/tp92.pdf

2. Rifai N, Horwath AR, Wittwer CT, eds: Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. 6th ed. Elsevier; 2018

Method Description

The metal of interest is analyzed by inductively coupled plasma mass spectrometry.(Unpublished Mayo method)

Day(s) Performed

Sunday

Report Available

2 to 8 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

84255

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SEWB Selenium, B 5722-4

 

Result ID Test Result Name Result LOINC Value
65600 Selenium, B 5722-4