CEN Exam With Complete Questions and Answers Already Graded A 2024

MAP calculation - [( 2xDBP) + SBP] / 3 cushing's triad - widened pulse pressure, bradycardia, and irregular respirations (indicative of increased ICP) chronotropes - affect the heart rate at the SA node (cardizem) inotropes - affect contractility (dopamine) dromotropes - affect automaticity of the heart ACE inhibitors adverse effects - dry cough, angioedema, renal impairment ARB (sartans) - block angiotensin 2 receptors, resulting in vasodilation antidote for vasopressor extravasation - phentolamine (regitine) Prinzmetal angina - -episodic CP unrelated to exertion -ST elevation is variant and resolves when vasospasm resolves inferior MI ST elevation - leads II, III AVF Lateral MI ST elevation - I, AVL, V5, V6 Anterior ST elevation - V1-V4 inferior MI vessel involvement - RCA (feeds SA and AV nodes) inferior MI presentation - Epigastric pain bradycardia and heart blocks anterior MI vessel involvement - LAD (supplies L ventricle) anterior MI presentation - crushing CP "I can't breathe" Ventricular failure and arrhythmias right ventricle-involved MI - -get right sided ekg -NO nitro or morphine` tx for MI - oxygen aspirin nitroglycerin PCI within 90 mins beta-blockers for HTN **reperfusion dysrhythmias are a good sign with PCI aortic dissection BP - difference of 20 mmHg or more in SBP b/t arms aortic dissection tx - #1 priority is 2 large bore IV's