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Measures salivary cortisol at four times across one day: morning, noon, evening, and night. The repeated collections map how cortisol changes from waking through bedtime.
Compares cortisol across two timed blood samples for clinician-guided review of its daily pattern. Order online for Quest collection; no fasting is required, but each draw must follow the agreed schedule.
Compares cortisol across three timed blood samples for clinician-guided review of its daily pattern. Order online for Quest collection; no fasting is required, but each draw must follow the agreed schedule.
This blood test measures morning cortisol. DirectLabs describes cortisol as involved in glucose regulation, metabolism, inflammation, salt and water balance, and blood pressure.
Measures morning cortisol through a Quest blood draw collected between 7 AM and 9 AM. No fasting is required, and complete results are listed within 3 business days.
Measures free and total serum cortisol together when evaluating adrenal hormone levels or changes in cortisol-binding proteins. Order online for a timed partner-laboratory blood draw, with results interpreted in clinical context.
Measures cortisol in a late-night saliva sample using LC/MS, when cortisol is normally near its daily low point. Complete results are listed within 7 business days after the sample reaches the laboratory.
Measures late-night cortisol in two saliva samples using LC/MS. Both samples must reach the laboratory before results can be finalized, with complete results listed within 7 business days.
Measures late-night cortisol across three separate saliva samples using LC/MS. All three samples must reach the laboratory before results can be finalized, with complete results listed within 7 business days.
Measures cortisol through an afternoon or evening Quest blood draw to evaluate a later daily time point. Complete results are listed within 7 business days.
Measures cortisol in a timed late-day blood sample for clinician-guided assessment of its daily pattern. Order online for a participating-laboratory blood draw; the morning measurement is not included.
Measures total cortisol through a Quest blood draw, with no fasting required. Prednisone or prednisolone can cross-react with the assay, and complete results are listed within 3 business days.