Insulin | KK Women's and Children's Hospital

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?	No
Turn Around Time	3 - 4 hrs
Reference Value(s)	Serum insulin concentration is determined by fasting status, glucose level and the extent of insulin resistance etc. Insulin results should be interpreted in conjunction with blood/plasma glucose results and the clinical context. If in doubt, contact chemical pathologist or endocrinologist for discussion.
Testing Laboratory Location	KKH
Laboratory	Clinical Chemistry
Contact Number	6394 1383
Day and Time Performed	Mon - Fri: 0800 hrs to 1700 hrs Sat: 0800 hrs - 1230 hrs
Orderable on CPOE?	Yes
Downtime Form	Clinical Chemistry - Form A
Additional Information	Haemolysed samples are unsuitable for analysis.

Change History Notes

27 May 2024 08:00 AM

Update of Specimen Requirement.
16 Nov 2021 10:00 AM

Updated Specimen Requirement, Turn Around Time, Reference Value(s) Contact Number and Additional Information.

Last Updated - 27 May 2025