Leads v1 and 2 - Study guides, Class notes & Summaries

Foundations CBR20 – Cardiology Exam Questions With Answers What underlying pathologic process distinguishes myocardial infarction from angina/unstable angina? Atherosclerotic plaque rupture → exposed endothelium → clot attaches → reduced blood flow; if cell death occurs (usually due to complete vascular obstruction) then positive trop and MI; if no cell death occurs then negative trop and angina/unstable angina What is the difference between transmural and non-transmural infarctio...

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 e...

1. A pt present to the ED with complaints of chest pain. The 12-lead EKG reveals ST segment elevation in leads I and aVL. The initial BP is 112/69 and decreases to a systolic of 60 mmHg following a dose of nitroglycerin 0.4mg SL. The next most appropriate intervention is to: A. Complete a fibrinolytic check sheet B. Initiate a dopamine drip for blood pressure control C. Obtain a R sided EKG D. Administer a 0.9% NS bolus IV - D. Administer a 0.9% NS bolus IV Pts can be sensitive to va...

1. A pt present to the ED with complaints of chest pain. The 12-lead EKG reveals ST segment elevation in leads I and aVL. The initial BP is 112/69 and decreases to a systolic of 60 mmHg following a dose of nitroglycerin 0.4mg SL. The next most appropriate intervention is to: A. Complete a fibrinolytic check sheet B. Initiate a dopamine drip for blood pressure control C. Obtain a R sided EKG D. Administer a 0.9% NS bolus IV Ans- D. Administer a 0.9% NS bolus IV Pts can be sensiti...

"Tearing chest pain" Aortic dissection. Unequal upper extremity blood pressure readings (L arm > R arm with difference of 20mmHg systolic) ST elevation in V1, 2, 3, and 4 Anterior myocardial infarction Brainpower Read More 0:09 / 0:15 ST elevation leads I, AVL, V5, V6 Lateral myocardial infarction

What is the primary pacemaker? Correct Answer: SA Node What is a more medically correct term for the clotting of an artery? Correct Answer: Occlusion When the Atria depolarize (or contract), what is shown on the EKG tracing? Correct Answer: P wave An irregular heartbeat that is common among children is called _____ _____. Correct Answer: Sinus Arrhythmia 1 sm box on an EKG strip denotes 0.04 seconds of time. How long is this represented in millimeters? Correct Answer: 1 mm 2 What is...

ECG leads representing anterior wall correct answers V1-4 (LAD) ECG leads representing the inferior portion of the heart correct answers II, III, and aVF (right coronary artery) ECG leads representing the lateral myocardial wall correct answers I, AVL, V5, & V6 When should you consider immediate diagnostic coronary angiography? correct answers order immediate diagnostic coronary angiography for a STEMI or new-onset Left BBB Another name for angioplasty... correct answers Primary I...

Comprehensive CRNA Interview Review Accurate responses are given. Comprehensive CRNA Interview Review Norepinephrine Mechanism of Action (MOA) A1, A2, B1 agonist. Primary agent used in distributive shock because it's ability to recruit venous volume and augment preload, while increasing arterial tone, and increasing cardiac output. Alpha one causing peripheral smooth muscle contraction. (low dose venous, high dose venous and arterial). Alpha 2 adrenoreceptor agonism actually ant...

ECG provides correct answers a record of the electrical activity occurring in the heart throughout the cardiac cycle how an ECG is administered correct answers exercise technician can administer a resting 12-lead ECG test, but a highly-skilled and qualified physician should interpret the results (Heyward, 2010). The resting ECG provides baseline data (for future resting and exercise 12-lead ECG tests), and can also be used to detect contraindications to exercise testing Einthoven correct a...

FoEM CBR22- Cardiology Exam What underlying pathologic process distinguishes myocardial infarction from angina/unstable angina? Atherosclerotic plaque rupture → exposed endothelium → clot attaches → reduced blood flow; if cell death occurs (usually due to complete vascular obstruction) then positive trop and MI; if no cell death occurs then negative trop and angina/unstable angina. What is the difference between transmural and nontransmural infarction? Transmural: usually STEMI, la...