Which is the first drug to be staed in Sheehan’s syndrome?
**Core Concept**
Sheehan's syndrome is a rare endocrine disorder occurring in postpartum women due to pituitary gland necrosis, leading to hypopituitarism. The primary goal of treatment is to replace deficient hormones.
**Why the Correct Answer is Right**
The first-line treatment for Sheehan's syndrome typically involves replacement therapy with glucocorticoids, such as hydrocortisone. This is crucial to prevent adrenal crisis and ensure adequate cortisol levels. Hydrocortisone is often initiated before other hormone replacement therapies, as it is essential for life and has a broader range of effects on the body.
**Why Each Wrong Option is Incorrect**
**Option A:** Other hormone replacement therapies, such as thyroid hormone or sex hormones, may be initiated concurrently with glucocorticoids but are not the first-line treatment in Sheehan's syndrome.
**Option B:** Vasopressin and desmopressin may be used to manage diabetes insipidus, a complication of Sheehan's syndrome, but are not the primary treatment.
**Option C:** Dopamine agonists, such as cabergoline, can be used to treat prolactinomas but are not the first-line treatment for Sheehan's syndrome.
**Option D:** Growth hormone replacement therapy is not typically initiated as the first-line treatment in Sheehan's syndrome.
**Clinical Pearl / High-Yield Fact**
Sheehan's syndrome is often associated with postpartum hemorrhage, which can lead to pituitary gland necrosis due to decreased blood flow and subsequent hypoxia.
**Correct Answer:** A. Hydrocortisone.