Enda Increase Hc Pregnancy Third Trimester

---
name: enda-increase-hc-pregnancy-third-trimester
description: Recommends increasing hydrocortisone dose in pregnant patients with primary adrenal insufficiency based on individual clinical course, especially during the third trimester. Trigger phrases include "fatigue, postural hypotension, weight loss, or hyperglycemia in pregnant PAI patient" and "need for glucocorticoid dose adjustment in third trimester."
---

# Increase Hydrocortisone Dose in Pregnancy, Particularly During Third Trimester

## STEP 1 — Gather Information
Collect gestational age, current hydrocortisone dose and schedule, maternal symptoms (fatigue, nausea, vomiting, postural hypotension or hypertension, weight changes, hyperglycemia), weight, blood pressure, and any signs of over- or under-replacement; end with assessment of symptom pattern.

## STEP 2 — Rule In / Rule Out
Is the patient pregnant with confirmed PAI and at ≥28 weeks gestation? If yes, proceed to symptom classification; if no, continue routine trimester‑based monitoring and do not apply this specific increase algorithm.

## STEP 3 — Classify or Stratify
Classify symptom pattern: under‑replacement (fatigue, nausea, hypotension, weight loss, hyponatremia); over‑replacement (weight gain, hyperglycemia, insomnia, edema, hypertension); or stable (no concerning signs); end with a classification decision.

## STEP 4 — Decide
If under‑replacement signs are present, increase hydrocortisone dose by 20‑40% (e.g., from 20 mg to 25 mg daily) divided into two or three doses; if over‑replacement, maintain current dose or consider reduction after obstetric review; if stable, maintain current dose; end with dosing adjustment order.

## Clinical Guardrails / Mimics / Pitfalls
Avoid glucocorticoid over‑replacement that can cause Cushingoid features, maternal hyperglycemia, hypertension, or fetal growth restriction; do not use dexamethasone in pregnancy due to lack of placental inactivation; avoid abrupt dose changes without maternal‑fetal monitoring; ensure mineralocorticoid adequacy when increasing hydrocortisone.

## Concrete Clinical Example
A 32‑year‑on‑known PAI at 30 weeks gestation reports fatigue, postural hypotension, and 2 kg weight loss despite hydrocortisone 20 mg daily. Assessment indicates glucocorticoid under‑replacement. Increase hydrocortisone to 25 mg daily in divided doses, reassess symptoms and weight in 1‑2 weeks.

**Source:** Diagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline, Endocrine Society, 2016, DOI:10.1210/jc.2015-1710