This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A male patient presents with headache, profuse sweating and palpitations with a blood pressure of 180/120 mm Hg. The drug of choice would be 
Select and explain. 
A. Nifedipine, B. Labetalol, C. Prazocin, D. Phenoxy benzamine
B: Labetalol
Answer: B: Labetalol 
Explanation: Answer is B (Labetalol) Symptomatic Hypeension with diastolic pressure of 120 suggest a diagnosis of Hypeensive Emergency. Labetalol (intravenous) is the drug of choice for management of Hypeensive Emergencies (amongst the options provided).