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Test Code SES Selenium, Serum

Reporting Name

Selenium, S

Useful For

Monitoring selenium replacement therapy

Method Name

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

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Collection Container/Tube: 6-mL Plain, royal blue-top Vacutainer plastic trace element blood collection tube (T184)

Submission Container/Tube: 7-mL Mayo metal-free, screw-capped, polypropylene vial (T173)

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 Mayo 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 Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

Additional Information: 

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

2. If ordering the trace element blood collection tube from BD, order catalog #368380.


Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross reject

Other

NA

Reference Values

0-2 months: 45-90 ng/mL

3-6 months: 50-120 ng/mL

7-9 months: 60-120 ng/mL

10-12 months: 70-130 ng/mL

>1 year: 70-150 ng/mL

Day(s) and Time(s) Performed

Monday; 2 p.m.; Tuesday through Friday; 5 p.m.; Saturday; 2 p.m.

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

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 U.S. Food and Drug Administration.