The Cortisol (Evening) Test is a precise blood test used to measure the level of the Cortisol hormone circulating in the blood, specifically collected in the late afternoon or evening. This test is rarely used alone but is essential when performed in conjunction with the morning cortisol test to evaluate the body's diurnal (daily) rhythm of cortisol production.
Normally, cortisol levels drop significantly by evening, reaching their lowest point late at night. Failure of the cortisol level to drop in the evening is a key indicator of Cushing's Syndrome (cortisol excess).
At Augmentum Diagnostics, an NABL-accredited lab in Delhi, we ensure the accurate measurement of evening cortisol, which is vital for confirming the disruption of the natural HPA axis rhythm.