Administration of Steroids in Suspected Adrenal Insufficiency

Initial Assessment and Management

The American College of Physicians recommends immediate administration of hydrocortisone 100 mg as an intravenous bolus, followed by 100-300 mg/day as continuous infusion or divided doses every 6 hours, for patients with suspected adrenal insufficiency 1, 3
Fluid resuscitation with 3-4 L of isotonic saline or 5% dextrose in isotonic saline should be initiated simultaneously, with an initial infusion rate of approximately 1 L/hour, as recommended by the American Heart Association 1
Clinical diagnosis should take precedence over laboratory confirmation when adrenal insufficiency is suspected, and treatment should not be delayed while waiting for test results, according to the American College of Clinical Endocrinologists 2, 4
For severe symptoms, such as hypotension or altered mental status, hospitalization or emergency department referral is necessary for IV stress-dose steroids and fluid management, as recommended by the American College of Emergency Physicians 2, 4

For ambulatory patients with moderate symptoms but stable vital signs, the Endocrine Society recommends considering oral hydrocortisone at 2-3 times maintenance dose (typically 30-75 mg/day in divided doses) 2, 5
If symptoms are concerning but not immediately life-threatening, oral pulse dose therapy with prednisone 1 mg/kg/day may be appropriate, according to the American Academy of Clinical Endocrinologists 2

Immediate IV hydrocortisone 100 mg bolus followed by 50-100 mg every 6-8 hours is recommended for patients with severe symptoms or adrenal crisis, as stated by the Society of Critical Care Medicine 2, 4
Aggressive fluid resuscitation with isotonic saline to correct hypotension and electrolyte abnormalities is necessary, according to the American College of Surgeons 1, 3

When administering steroids to patients with suspected adrenal insufficiency who also have other endocrine deficiencies, the American Association of Clinical Endocrinologists recommends starting corticosteroids first, as other hormone replacements can accelerate cortisol clearance and precipitate adrenal crisis 2, 4
The American College of Physicians states that ACTH stimulation testing can give false-negative results early in the course of adrenal insufficiency, especially in secondary adrenal insufficiency; in cases of clinical uncertainty, it is safer to provide replacement therapy and test for ongoing need later 2, 4
All patients started on steroids for suspected adrenal insufficiency should receive education on stress dosing for illness, emergency steroid injection, and should be advised to obtain a medical alert bracelet, as recommended by the Endocrine Society 2, 4

Once the patient is stabilized, the American College of Clinical Endocrinologists recommends tapering parenteral glucocorticoids over 1-3 days to oral maintenance therapy if the precipitating illness permits 1, 3

The American Academy of Emergency Medicine states that withholding steroids in suspected adrenal insufficiency due to concerns about confirming the diagnosis is not recommended, as adrenal crisis has a high mortality rate if untreated 3, 6
The Society of Critical Care Medicine recommends being vigilant for adrenal insufficiency in patients on chronic steroid therapy who are undergoing surgery or experiencing acute illness 3, 7