Selenium, serum | KK Women's and Children's Hospital

Specimen Container	Trace metal free tube (serum) (To be obtained from DPLM Client Services, after office hour call extension 1352)
Specimen Requirement	5 mL plain blood collected in trace metal free tube. Avoid haemolysis.
Orderable as Urgent?	No
Turn Around Time	Mean = 7 days ; Range 3 - 11 days
Reference Value(s)	>= 20 yrs: 107 - 208 ug/L
Testing Laboratory Location	SGH
Laboratory	Biochemistry
Contact Number	6394 1352
Day and Time Performed	Mon to Fri: 0800hrs - 1400 hrs Sat: 0800hrs - 1000 hrs Do not collect on Eve of Public holidays and Public holidays.
Orderable on CPOE?	No
Downtime Form	Clinical Chemistry - Form A
Additional Information	Instructions Before Sampling: Patient should avoid taking either gadolinium or iodine containing contrast media for at least 4 days as they can interfere with trace metal tests.

Change History Notes

Last Updated - 05 Apr 2025