Thyroid Stimulating Hormone (TSH)

XU0122

Synonym(s):
Specimen Container
Gel separator tube (Adult)
Microtube (Paeds)
Specimen Requirement
Plain Blood
Adult: 5 mL
Paediatric: 1.3 mL

Invert blood 5 times after blood collection ensures the clot-activating factors is well mixed with the blood. This will ensure results are reliable.               
Orderable as Urgent? Yes
Turn Around Time
3 - 4 hrs
Reference Value(s)

TSH reference imtevals for women with singleton pregnancies
15-50 years old (inclusive)  
 
- Cord: <25.00 mIU/L
- <3rd day: 1.00-20.00 mIU/L
- 3rd-30th day: 0.50-6.50 mIU/L
- 1st-5th month: 0.50-6.00 mIU/L
- 6th month-18th year: 0.50-4.50 mIU/L
- Adult: 0.45-4.50 mIU/L


TSH reference intervals for women with singleton pregnances
09 to 14 wks gestation: 0.01 - 2.39 mIU/L
18 to 22 wks gestation: 0.33 - 3.33 mIU/L
28 to 32 wks gestation: 0.37 - 3.49 mIU/L
34 to 39 wks gestation: 0.38 - 3.28 mIU/L


Testing Laboratory Location KKH
Laboratory Clinical Chemistry
Contact Number 6394 1383
Day and Time Performed
Mon - Fri: 0800 hrs - 1700 hrs
Sat: 0800 hrs - 1230 hrs
Orderable on CPOE? Yes
Downtime Form

Clinical Chemistry - Form A

Additional Information
Critical Value:
- TSH, Cord: > 30 mIU/L
- TSH, Serum: > 30 mIU/L

Change History Notes

  • 27 May 2024 08:00 AM

    Update of Specimen Requirement.


  • 03 Dec 2021 08:10 AM

    ​Updated Specimen Requirement, Turn Around Time, Reference Value(s), Date and Time Performed and Additional Infomation.

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Last Updated - 05 Apr 2025