What refers to the direction of electrical impulses traveling through the heart? 

An African American 68 year old female presents to the emergency department with complaints of eye pain that started a few hours ago. She reports intense pain to her left eye with difficulty seeing. She describes seeing halos around lights. History of HTN, DM, and Addison’s disease. On exam, the left pupil is dilated and erythema is noted to the conjunctiva. Optic disc is irregular.  Home medications: amlodipine 10mg daily, Glipizide 10mg BID, lispro 4 units AC, hydrocortisone 15mg BID.   What is the most likely diagnosis?

Interpret the axis of the following ECG. ECG Case Study from Manual of Medicine

You are performing a physical assessment on a 65 year old male who has been admitted to the hospital for CHF exacerbation with acute respiratory failure. You auscultated an easily heard with stethoscope murmur at the base of the heart.  What grade of murmur is this classified as? 

A nurse practitioner’s scope of practice is determined by what? Select all that apply. 

Calculate the rate for the following rhythm. ECG Case Study from Manual of Medicine Rate: beats per minute

Which rhythm is characterized by having a normal PR interval and QRS, visible p-waves, and an irregular rhythm? 

Match each aspect of the cardiac cycle with its associated electrical activity. 

What defines the boundaries of practice for a nurse practitioner? 

Which of the following uses of electronic medical records places the nurse practitioner at risk for liability? Select all that apply.