Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 1/9/2026

IV Hydrocortisone Administration in Adrenal Crisis

Immediate Bolus and Continuous Infusion

  • In patients with suspected or confirmed adrenal crisis, give an immediate 100 mg hydrocortisone IV bolus (push) followed without delay by a continuous infusion of 200 mg over the next 24 hours until hemodynamic stability is achieved. 1
  • The 100 mg bolus can be delivered over several minutes as a direct push through established IV access. 2
  • Do not postpone the hydrocortisone bolus to wait for diagnostic blood work; if possible, obtain cortisol and ACTH samples before treatment but administer the drug as soon as venous access is secured. 1

Fluid Resuscitation

  • Initiate aggressive crystalloid resuscitation with 0.9 % normal saline; give an initial 5–10 mL/kg within the first 5 minutes, with total volumes up to 7 L potentially required in adult patients. 2
  • Avoid lactated Ringer’s solution for the initial fluid bolus because it may exacerbate metabolic acidosis; use only isotonic saline. 2
  • In patients with underlying congestive heart failure or chronic kidney disease, monitor fluid status closely during aggressive resuscitation to prevent volume overload. 2

Pharmacologic Rationale

  • A 100 mg hydrocortisone bolus provides 4–5 times the usual daily replacement dose, delivering supraphysiologic glucocorticoid concentrations needed to suppress the life‑threatening inflammatory cascade of adrenal crisis. 3

Peri‑operative Stress Coverage (Non‑Crisis Situations)

  • For minor surgical procedures, a single 100 mg IV or IM dose of hydrocortisone at induction is sufficient; thereafter double the oral glucocorticoid dose for the next 24 hours. 1
  • For major surgery, administer 100 mg hydrocortisone at induction and repeat 100 mg every 6 hours for 24–48 hours, then transition to a doubled oral maintenance dose. 1

REFERENCES

1

Hydrocortisone Treatment Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2026

3

Insulin-to-Carbohydrate Ratio Adjustment After Hydrocortisone Administration [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025