## **Core Concept**
The management of hypertension in pregnancy is crucial to prevent complications for both the mother and the fetus. The choice of antihypertensive medication during pregnancy must consider the safety and well-being of both.

## **Why the Correct Answer is Right**
Methyldopa is considered the drug of choice for hypertension in pregnancy due to its long history of safe use. It works centrally by stimulating α2-adrenergic receptors in the brain, which decreases sympathetic tone and leads to vasodilation and decreased blood pressure. Its safety profile for both the mother and the fetus has been well established over decades.

## **Why Each Wrong Option is Incorrect**
* **Option A:** Nifedipine, a calcium channel blocker, can be used in pregnancy but is typically considered after methyldopa, especially in severe hypertension or when methyldopa is not tolerated. It can cause reflex tachycardia and has a less established safety profile compared to methyldopa.
* **Option B:** Propranolol, a beta-blocker, can be used in pregnancy but with caution, particularly in the first and third trimesters. Its use is more limited due to potential growth restriction in the fetus.
* **Option D:** Lisinopril, an ACE inhibitor, is contraindicated in pregnancy due to the risk of fetal renal damage and other complications.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the goal of treating hypertension in pregnancy is not to normalize blood pressure but to prevent complications. The American College of Obstetricians and Gynecologists (ACOG) provides guidelines for the management of hypertension in pregnancy, emphasizing the importance of methyldopa as a first-line agent.

## **Correct Answer:** . Methyldopa