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endocrinologyHas Critical Values
Cortisol
Cortisol· also: AM Cortisol
Clinical Overview
Cortisol is the primary stress hormone produced by the adrenal glands. Elevated cortisol may indicate Cushing's syndrome; low cortisol may indicate Addison's disease.
Reference RangesWHO/IFCC standards
| Age Group | Reference Range | Unit | Notes |
|---|---|---|---|
| Adults (18–64) | 6 – 23 | µg/dL | Morning (8 AM) |
| Adults (18–64) | 2 – 12 | µg/dL | Afternoon (4 PM) |
Also reported in: nmol/L.
Critical (Panic) Values
Critical Low: < 2 µg/dL. Values outside these limits require immediate clinical attention.
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Related Topics
adrenalstressCushingAddison