Test/Investigation
Cortisol (Serum)
Site(s) or Laboratory offering Test/Investigation
NNUH, QEH, JPUH
Units
nmol/L
Sample type
Serum
Turnaround times (TAT) Urgent/Routine/GP or OPD
1 hour / 4 hour / by 8am next day
Reference intervals (adult unless stated)
09:00 in unstressed patient, 101 – 536 nmol/L, 24:00 in sleeping patient <50 nmol/L
If UKAS Accredited Test indicate at which site
Y NNUH, QEH
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