Cortisol, AM Lab Test in Tampa

Cortisol follows a daily rhythm, peaking in the early morning. Testing at this time gives the most accurate picture of adrenal function.

Fasting is not required unless directed otherwise by your provider.

It can help support diagnosis of adrenal disorders like Addison’s disease, Cushing’s syndrome, and other hormonal imbalances.

This test measures cortisol levels first thing in the morning—when they should naturally be at their highest—offering a quick way to assess adrenal output and stress response at the start of the day. In contrast, a full-day or 4-point cortisol panel evaluates levels at multiple times throughout the day, helping to identify disruptions in your circadian rhythm or chronic stress patterns that may not be visible with a single time-point reading. The AM test is ideal for initial screening, while a full-day panel provides more detailed insight into how your body regulates cortisol over time.

Yes, especially corticosteroids. Always inform your provider about any medications or supplements you’re taking.

Elevated AM cortisol may indicate chronic stress, adrenal overproduction, or conditions like Cushing’s syndrome. Further testing may be needed for diagnosis.

Low levels in the morning can point to adrenal fatigue, Addison’s disease, or pituitary issues, especially if symptoms like fatigue or low blood pressure are present.