Cholesterol, HDL | 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	Average 2 hrs (1 - 3 hrs)
Reference Value(s)	HDL Cholesterol (mmol/L) Low : < 1.0 Desirable : 1.0 - 1.5 High : >= 1.6 Source: MOH Clinical Practice Guidelines 2/2016 for Lipids
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

Change History Notes

Last Updated - 05 Apr 2025