## **Core Concept**
The management of hypertension in pregnancy requires careful consideration of both the mother's and the fetus's health. Antihypertensive drugs used in pregnancy must be safe for both. Commonly used antihypertensives include methyldopa, labetalol, and nifedipine.

## **Why the Correct Answer is Right**
ACE inhibitors (Angiotensin-Converting Enzyme inhibitors) are contraindicated in pregnancy, particularly in the second and third trimesters, due to the risk of fetal harm, including renal damage and oligohydramnios. They interfere with the renin-angiotensin-aldosterone system, which plays a critical role in fetal kidney development.

## **Why Each Wrong Option is Incorrect**
* **Option A:** Methyldopa is often considered a first-line treatment for hypertension in pregnancy due to its long history of safe use.
* **Option B:** Labetalol is also commonly used and has a good safety profile for both mother and fetus.
* **Option C:** Nifedipine, a calcium channel blocker, can be used in pregnancy when benefits outweigh risks, though its use might be more cautious compared to methyldopa and labetalol.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that ACE inhibitors and ARBs (Angiotensin Receptor Blockers) are contraindicated in pregnancy due to their association with fetal renal damage and other complications. Always consider the safety profile of antihypertensive drugs in pregnant women.

## **Correct Answer:** . ACE inhibitors