Left axis deviation is identified by a negative deflection of the QRS in lead I, and a positive deflection in lead aVF. 

Interpret the following ECG.  ECG Case Study from Manual of Medicine Rhythm: with ST Rate: beats/min Axis:

Identify the following rhythm. with (type of PVC). 

Temporal arteritis requires immediate treatment in order to prevent:

Identify the following rhythm. Image from Helio.com, article by Steven Lome, MD

A 1st degree AV block is identified by measuring a PR interval of

An adult gerontology acute care nurse practitioner (AGACNP) is working in the emergency department. Which of the following patient scenarios would be considered “out of the AGACNP scope of practice”?    

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