Sinoatrial sa node - Study guides, Class notes & Summaries

Test Bank for Clinical Guidelines in Primary Care, 4th Edition by FAANP Amelie Hollier DNP, FNP-BC 8272 | All Chapters Covered 1.The nurse is aware that the muscle layer of the heart, which is responsible for the hearts contraction, is the: a. endocardium. b. pericardium. c. mediastinum. d. myocardium. ANS: D The myocardium is the specialized muscle layer that allows the heart to contract. 2.The nurse clarifies that the master pacemaker of the heart is the: a. left ventricle. b. atrio...

EMT 100 MODULE 7 EXAM 2023 QUESTIONS AND ANSWERS What is it called when individual units make independent and inefficient decisions about the next appropriate action? [Ans: - Freelancing. A rapid, chaotic rhythm that is completely disorganized is called: [Ans: - Ventricular fibrillation. The MOST effective treatment for ventricular fibrillation or pulseless ventricular tachycardia of short duration is: [Ans: - Prompt, rapid defibrillation. Which of the following cardiac arrhythmias is ...

The heart is divided into how many chambers correct answer: 4 chambers: 2 atria and 2 ventricles Insufficient blood flow through the coronary arteries can result in: correct answer: Angina Beta one controls the correct answer: Heart Name the two systems that comprise the autonomic nervous system: correct answer: Parasympathetic and Sympathetic Stimulation of the Vagus nerve will __________ the heart rate correct answer: decrease Another name for the Parasympathetic nervous sy...

TEST BANK - ALL ATI MED SURG PROCTORED EXAM 2019 CARDIOVASCULAR HEALTH STUDY GUIDE QUESTIONS AND ANSWERS (100%CORRECT). ATI MED SURG PROCTORED EXAM 2019 – CARDIO STUDY GUIDE A nurse is performing discharge teaching with a client who has an implantable cardioverter defibrillator (ICD) placed. Which client statement indicates effective teaching? Correct response: • "I'll keep a log of each time my ICD discharges." The nurse is caring for a client scheduled for a transesophageal echoca...

What period follows depolarization of the myocardium and represents a period during which no new cardiac potential can be propagated? Correct! Refractory Threshold Sinoatrial (SA) Hyperpolarization During the refractory period, no new cardiac action potential can be initiated by a stimulus. This selection is the only option that accurately identifies the period described in the question. Question 2 2 / 2 pts What is the suggested mean blood pressure for an 8- to 9-year-old ch...

HESI Pediatric Cardiovascular Disorders 2023 Guaranteed A+ Actual Questions and Answers, Complete 100% 1. The nurse is providing information to the parents of a toddler who is scheduled for surgery for the replacement of the pulmonic valve. The parents have many questions about the function of the valve. Which information from the nurse is correct? 1. The valve must work correctly to get oxygen from the lungs to the body. 2. If the valve does not work correctly, blood is kept from enteri...

The valve between the right atrium and right ventricle is named because it has _____. - answers-three cusps A small patch of tissue called the _____ acts as the pacemaker of the heart. - answers-sinoatrial node _____ samples the blood in each heart chamber for oxygen content and pressure. - answers-cardiac catheterization The simplest form of atherosclerosis is _____, which are thin, flat discolorations in the arteries that can enlarge and become thicker as they grow in length. - answer...

aneurysm visible, prominent pulsation or dialation diastole ventricular relaxation, ventricular filling from atria. erythema redness of skin murmur harsh, blowing sounds caused by disruption of blood flow myocardial ischemia oxygen needs heightened so heart has to work harder systole ventricular contraction, blood leaves the ventricles to go to the lungs or body. what is the pacemaker of the heart sinoatrial node (SA node) how many times is the sinoatrial node set to discharge per ...

Which of the following is NOT a component of effective perfusion? A. Adequate blood volume B. Efficient heart pumping action C. Patent and responsive blood vessels D. High blood glucose levels D. High blood glucose levels (Adequate blood volume ensures that there is enough blood to be circulated throughout the body. Efficient heart pumping action is necessary for moving blood through the circulatory system. Patent and responsive blood vessels are needed to allow blood to flow freely to t...

1. A client with asthma receives a prescription for high blood pressure during a clinic visit. Which prescription should the nurse anticipate the client to receive that is least likely to exacerbate asthma? A. Carteolol (Ocupress). B. Propranolol hydrochloride (Inderal). C. Pindolol (Visken). Incorrect D. Metoprolol tartrate (Lopressor). Correct The best antihypertensive agent for clients with asthma is metoprolol (Lopressor) (C), a beta2 blocking agent which is also cardiosel...