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Test 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

1 week

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) AND TIME(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