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Which of the following statements concerning Class I B anti-dysrhythmics is correct?

Your 46 y/o patient is having substernal chest pressure and took Cialis® within the past 8 hours.  Which of the following is correct?

Which of the following statements regarding anti-dysrhythmic medications is INCORRECT?

This group of antihypertensive agents blocks the stimulation of post-synaptic receptors that regulate vascular tone by inhibiting norepinephrine reuptake, thus resulting in venous and arteriole  vasodilation.

Signs & symptoms of lidocaine toxicity include which of the following?

ACLS recommends that when treating acute coronary syndromes, the patient’s oxygen saturation should be maintained at or above                    percent.

Which of the following best describes the mechanism of action of diltiazem?

Which of the following statements regarding amiodarone (Cordarone™) is INCORRECT?

Which of the following doses of dopamine primarily causes vasoconstriction with no or very little cardiac effects?

This group of antidysrhythmic medications work by blocking the influx of calcium into muscle cells resulting in decreased peripheral vasoconstriction, myocardial contractility, automaticity and conduction velocity.