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HelpTest Code SELENB Selenium
Specimen Type
Serum
Container/Tube
Royal Blue Top with Red Stripe (Metal Free)
Offsite Collection Instructions
1. Collect blood in royal blue top trace element collection
tube.
2. Allow the specimen to clot for 30 minutes.
3. Centrifuge and aliquot into a metal free transport
container.
4. Transport frozen ( – 20˚C).
Turnaround Time
N/A
Test Includes
N/A
Preferred Volume
1.0 mL
UCMC Collection Instructions
1. Collect blood in royal blue top trace element collection
tube.
2. Within 2 hours of collection the sample must be received in
Laboratory Service Center
3. Transport room temperature (15 – 25˚C).
Lab Instructions:
1. Allow the specimen to clot for 30 minutes.
2. Centrifuge and aliquot into a metal free transport
container.
3. Freeze until analysis can be completed.
Test Usage
Useful in monitoring selenium nutritional status, especially for patients undergoing parenteral nutrition.
Critical Results
N/A
Test Limitations
High concentrations of gadolinium and iodide are known to
interfere with most metals tests. If either gadolinium- or
iodide-containing contrast media has been administered, a
specimen
cannot be collected for 96 hours. Elevated results from
noncertified trace element-free tubes may be due to
contamination.
Diet, medication, and nutritional supplements may introduce
interfering substances.
Specimen Minimum Volume
0.5 mL
Day(s) Performed
Thursday
STAT DAY(S) AND TIME(S) PERFORMED
N/A
Method Name
Atomic Absorption Spectroscopy
Reference Values
80 �?? 142 ng/mL
Reference Range updated on 3/15/13
Reject Due To
Whole blood/unspun samples greater than 6 hours will be rejected.
STAT Turnaround Time
N/A
Synonyms
N/A
Additional Information
This test was developed and its performance characteristics
determined by The University of Chicago Medical Center Clinical
Chemistry Laboratories in a manner consistent with CLIA
requirements. This test has not been cleared or approved by the
U.S. Food and Drug Administration.
Included in Additional codes
N/A
Coverage Information
N/A
Stability: Room Temp
8 hours
Stability: Refrigerated
24 hours
Stability: Frozen
1 month
Specimen and Container/Tube
Serum
Pediatric Volume
0.5 mL
Clinical Indications
Useful in monitoring selenium nutritional status, especially
for
patients undergoing parenteral nutrition.
Transport Instructions
1. Collect blood in royal blue top trace element collection
tube.
2. Allow the specimen to clot for 30 minutes.
3. Centrifuge and aliquot into a metal free transport
container.
4. Transport frozen ( �?? 20??C).
Test Components
N/A
Specimen Stability
8 hours
Rejection Criteria
Whole blood/unspun samples greater than 6 hours will be
rejected.
Methodology
Atomic Absorption Spectroscopy
Synonyms/Key Search Words
N/A