- To standardise the results, the sample must be taken at 8 am, because cortisol levels in the body are highest at this time.
- Cortisol is also measured at 4 pm, when the hormone level falls.
- Some tablets, especially contraceptive pills or hydrocortisone, raise cortisol levels, and some steroid hormones lower them.
- So if you are taking any of these tablets, tell the laboratory and your doctor.
Pathobiology Laboratory, Nimeh Shaaban Hospital