A 25-year-old male presents to the emergency depament with occasional severe headaches, nausea, and vomiting. Blood pressure while sitting is 230/130 mmHg with a hea rate of 90 beats/min but on standing the blood pressure drops to 200/100 mmHg and the hea rate increases to 140 beats/min. A cardiovascular examination depicted tachycardia with normal S1, S2 sounds . The patient’s lungs are clear. The optic discs are blurred, but there are no exudates or hemorrhages. Select appropriate treatment for such condition .

**Core Concept**
The patient's presentation suggests a condition characterized by **severe hypertension**, **orthostatic hypotension**, and **tachycardia**, indicating a potential issue with **autonomic nervous system regulation** of blood pressure. This combination of symptoms can be seen in **pheochromocytoma**, a catecholamine-secreting tumor.

**Why the Correct Answer is Right**
Although the specific correct answer choice is not provided, the appropriate treatment for such a condition, likely **pheochromocytoma**, involves **alpha-blockade** followed by **beta-blockade** to control blood pressure and heart rate, respectively, before considering surgical intervention. The use of **alpha-blockers**, such as phenoxybenzamine, is crucial to prevent hypertensive crises during surgery by blocking the effects of excessive catecholamines on alpha-adrenergic receptors.

**Why Each Wrong Option is Incorrect**
**Option A:** Would be incorrect if it suggested using **beta-blockers** as the initial treatment, as this could worsen hypertension by allowing unopposed alpha-adrenergic receptor stimulation.
**Option B:** Might be incorrect if it recommended **surgery** without prior medical management of blood pressure, as this could lead to severe hypertensive episodes during the operation.
**Option C:** Could be incorrect if it proposed **diuretics** or other antihypertensive agents not addressing the underlying pathophysiology of catecholamine excess.
**Option D:** Would be incorrect if it suggested **no treatment** or an inappropriate pharmacological approach for managing the condition.

**Clinical Pearl / High-Yield Fact**
In patients with suspected **pheochromocytoma**, it is crucial to avoid **beta-blockers** until **alpha-blockade** is established to prevent unopposed alpha-adrenergic stimulation, which can lead to a hypertensive crisis.

**Correct Answer:**

✓ Correct Answer: C. Phentolamine