Management of Adrenal Crisis in an Unconscious Patient

Introduction to Adrenal Crisis Management

The American College of Physicians and other international guidelines recommend immediate intravenous hydrocortisone 100 mg bolus and rapid isotonic saline infusion (1 L over the first hour) as the cornerstone treatments for adrenal crisis in an unconscious patient, directly addressing mortality and morbidity 1, 2, 3

The Endocrine Society recommends an immediate 100 mg IV bolus of hydrocortisone, which must be administered without delay, as treatment should never be postponed for diagnostic procedures 1, 3
Hydrocortisone has a plasma half-life, requiring sustained administration, with effects evident within one hour, and dosing every 4-6 hours if high blood levels are required 1, 3
The continuous infusion approach (200 mg over 24 hours) is superior to intermittent dosing for maintaining physiologic cortisol concentrations during the stress response 4, 2

Aggressive fluid resuscitation with 0.9% saline 1 L over the first hour is equally critical as glucocorticoid replacement to address profound dehydration and hypotension 1, 3
Continue 3-4 L of isotonic saline or 5% dextrose in isotonic saline over 24-48 hours at a slower rate, with frequent hemodynamic monitoring and serum electrolyte measurement to avoid fluid overload 1, 3

Dexamethasone should NOT be used as primary treatment for adrenal crisis in patients with primary adrenal insufficiency, as it completely lacks mineralocorticoid activity, failing to address life-threatening electrolyte abnormalities and hypotension 4, 2
Epinephrine is not part of standard adrenal crisis treatment protocols, and adrenal crisis-related hypotension responds to hydrocortisone and volume resuscitation, not vasopressors as first-line therapy 1, 3, 4, 2

Never delay treatment for diagnostic testing, and immediately start hydrocortisone and saline without waiting for results, as the mortality rate of adrenal crisis is 0.5 per 100 patient-years 1, 3
Do not use dexamethasone when primary adrenal insufficiency is possible or the diagnosis is uncertain, and do not abruptly stop glucocorticoids, tapering over 1-3 days as the precipitating illness resolves 4, 2, 1, 3