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Test Code LAB579 Selenium, Serum

Additional Codes

SELENIUM

Reporting Name

Selenium, S

Useful For

Monitoring selenium replacement therapy


Specimen Required


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

Supplies:

-Metal Free Specimen Vial (T173)

-Metal Free B-D Tube (No Additive), 6 mL (T184)

Collection Container/Tube: 6-mL Plain, royal blue-top Vacutainer plastic trace element blood collection tube

Submission Container/Tube: 7-mL Metal-free, screw-capped, polypropylene vial

Specimen Volume: 0.8 mL

Collection Instructions:

1. Allow the specimen to clot for 30 minutes; then centrifuge the specimen to separate serum from the cellular fraction.

2. Remove the stopper. Carefully pour specimen into a metal-free, polypropylene vial, avoid transferring the cellular components of blood. Do not insert a pipette into the serum to accomplish transfer, and do not ream the specimen with a wooden stick to assist with serum transfer.

3. See Metals Analysis Specimen Collection and Transport for complete instructions.


Seattle Children's Hospital Note:

Collect 1.6 mL whole blood in Navy Blue Top trace element tube. (Lawson #11930).

 

Processing Note: Use of a standard pipette is acceptable for aliquoting these samples.

Specimen Type

Serum

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 28 days METAL FREE
  Ambient  28 days METAL FREE
  Frozen  28 days METAL FREE

Day(s) Performed

Monday through Saturday

Seattle Children's Hospital Note:

TAT: 3 - 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Method Name

Dynamic Reaction Cell-Inductively Coupled Plasma-Mass Spectrometry (DRC-ICP-MS)

Method Description

The metal of interest is analyzed by inductively coupled plasma mass spectrometry.(Unpublished Mayo method)

Reference Values

0-2 months: 45-90 mcg/L

3-6 months: 50-120 mcg/L

7-9 months: 60-120 mcg/L

10-12 months: 70-130 mcg/L

13 months-17 years: 70-150 mcg/L

≥18 years: 110-165 mcg/L

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It 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
SES Selenium, S 5724-0

 

Result ID Test Result Name Result LOINC Value
9765 Selenium, S 5724-0

Report Available

1 to 3 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Forms

If not ordering electronically, complete, print, and send General Request (T239)