A hypertensive, diabetic is having proteinuria,antihypertensive of choice is –
**Core Concept**
The management of hypertension in patients with diabetes and proteinuria involves the use of antihypertensive agents that not only lower blood pressure but also protect against renal damage. This is particularly important in patients with diabetic nephropathy, where proteinuria is a common indicator of renal involvement.
**Why the Correct Answer is Right**
The antihypertensive of choice in this scenario is an angiotensin-converting enzyme (ACE) inhibitor, such as lisinopril. ACE inhibitors work by blocking the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor that also stimulates the release of aldosterone, leading to sodium retention and increased blood pressure. By inhibiting the renin-angiotensin-aldosterone system (RAAS), ACE inhibitors reduce proteinuria and slow the progression of renal disease. They also have a protective effect on the kidneys by reducing intraglomerular pressure and preventing further damage.
**Why Each Wrong Option is Incorrect**
* **Option A:** Thiazide diuretics, such as hydrochlorothiazide, may be used to manage hypertension in some patients, but they are not the first-line treatment in patients with diabetes and proteinuria. Thiazides can actually worsen proteinuria and are not as effective in reducing renal damage as ACE inhibitors.
* **Option B:** Beta-blockers, such as metoprolol, may be used to manage hypertension, but they do not have a protective effect on the kidneys and can actually worsen proteinuria.
* **Option C:** Calcium channel blockers, such as amlodipine, may be used to manage hypertension, but they are not the first-line treatment in patients with diabetes and proteinuria. While they may reduce blood pressure, they do not have a protective effect on the kidneys.
**Clinical Pearl / High-Yield Fact**
In patients with diabetes and proteinuria, the use of ACE inhibitors can reduce the risk of progression to end-stage renal disease by up to 50%. This is why ACE inhibitors are considered a cornerstone of treatment for patients with diabetic nephropathy.
**Correct Answer: C. Amlodipine**