Selenium, Hair
Use
This test measures the level of selenium in the hair, which can be an indicator of long-term selenium exposure and storage in the body. Selenium is an essential trace element important for various bodily functions, including antioxidant defense, thyroid hormone metabolism, and immune system function.
Special Instructions
Hair samples should be collected properly to avoid contamination. It is crucial that the sample represents the desired segment of time for accurate assessment of selenium exposure.
Limitations
Analysis may not reflect acute selenium exposure since the deposition in hair represents an average over time. Contaminated samples can lead to false results. Proper collection and handling are essential to avoid errors in interpretation.
Methodology
Other
Biomarkers
Result Turnaround Time
7-10 days
Related Documents
For more information, please review the documents below
Specimen
Hair
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Collect enough hair to fill a small envelope, avoiding contamination. The sample should represent the segment of hair closest to the scalp.
Patient Preparation
Avoid any hair treatments before sample collection to prevent contamination.
Storage Instructions
Store in a clean, dry place until processed.
Causes for Rejection
Contaminated samples; insufficient sample size.