Use Prednisolone as Alternative if Hydrocortisone Unavailable for Emergency Treatment
STEP 1 — Gather Information
Assess for signs of adrenal crisis (e.g., hypotension, hyponatremia, hyperkalemia, abdominal pain) and verify hydrocortisone unavailability. If hydrocortisone is available, use hydrocortisone per standard dosing; if unavailable, proceed to step 2.
STEP 2 — Rule In / Rule Out
Determine if adrenal crisis is present based on clinical suspicion (e.g., acute hypotension with symptoms). If adrenal crisis is unlikely, seek alternative diagnosis and do not administer emergency glucocorticoid; if adrenal crisis is likely, proceed to step 3.
STEP 3 — Classify or Stratify
Classify glucocorticoid availability: if hydrocortisone unavailable but prednisolone available, select prednisolone; if neither hydrocortisone nor prednisolone available, consider dexamethasone as last resort.
STEP 4 — Decide
Administer prednisolone 3–5 mg orally once or twice daily (or equivalent weight-based dosing) as emergency glucocorticoid; if dexamethasone is used, give a stress dose equivalent (e.g., 0.1–0.2 mg IV/IM) only when no other glucocorticoid is accessible.
Clinical Guardrails / Mimics / Pitfalls
Do not use dexamethasone unless absolutely necessary due to risk of Cushingoid side effects and lack of mineralocorticoid activity; avoid using prednisolone as sole mineralocorticoid replacement; monitor for fluid/electrolyte imbalance; do not delay emergency glucocorticoid administration while awaiting confirmation.
Concrete Clinical Example
A 45-year-old with known primary adrenal insufficiency presents with vomiting, hypotension (80/50), and hyponatremia; hydrocortisone stock is depleted. Prednisolone 5 mg PO twice daily is given, and the patient improves after fluid resuscitation.
Source: Diagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline, Endocrine Society, 2016, DOI:10.1210/jc.2015-1710