<prompt> All of the following are useful in the intravenous therapy for hypertensive emergencies exceptFenoldopamUrapidilEnalaprilatNifedipine  <response>: Ans. D NifedipineRef: Katzung 10e p145, 179: KDT 8the p618, 619Nifedipine can be used rarely for the rapid control of blood pressure but the route of administration is sublingual. Fenoldopam is a D1 agonist used i.v. for hypertensive emergencies whereas urapidil is an a blocker. Enalaprilat not enalparil can also be used for the same indication. 