Sinoatrial node Study guides, Revision notes & Summaries

dysrhythmia aka arrhythmia - Correct answer - abnormal cardiac rhythms which can cause disturbances of: rate, rhythm, or both rate and rhythm how are dysrhythmias identified? - Correct answer Electrographic Waveform Analysis (ECG) what controls the rate and rhythm of the heartbeat? - Correct answer the heart's electrical system explain the heart's electrical system - Correct answer Each electrical signal (impulse) begins in a group of cells called the sinus node or sinoatrial (SA...

ENA Emergency Nursing Orientation 3.0 All Questions Review 2023/2024 Which type of shock causes a temporary loss of motor, sensory, and reflex functions below the level of a lesion? Correct Answer Spinal shock According to the rule of nines, burns of the anterior trunk and both anterior arms account for which percentage of body surface area? Correct Answer 27 percent Which effect does parasympathetic stimulation have on the heart? A. It increases peripheral vascular resistance. B. It...

Test Bank For Fundamentals of Nursing 9th Edition Potter Perry - All Chapters | Complete Guide 2023 1. A nurse is teaching staff about the conduction of the heart. In which order will the nurse present the conduction cycle, starting with the first structure? 1. Bundle of His 2. Purkinje network 3. Intraatrial pathways 4. Sinoatrial (SA) node 5. Atrioventricular (AV) node a. 5, 4, 3, 2, 1 b. 4, 3, 5, 1, 2 c. 4, 5, 3, 1, 2 d. 5, 3, 4, 2, 1

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...

Health Assessment Exam 3 test bank questions and answers 100% verified. While auscultating the heart at the third intercostal space, left sternal border, the nurse notes a high-pitched, scratchy sound that increases with exhalation with the client leaning forward. The nurse would document which of the following? A) Pericardial friction rub B) Midsystolic click C) Summation gallop D) Aortic ejection click - correct answers.A) Pericardial friction rub During chest auscult...

NCC EFM practice Questions and Answers Latest 2022/2023 Which of the following factors can have a negative effect on uterine blood flow? a. Hypertension b. Epidural c. Hemorrhage d. Diabetes e. All of the above e. All of the above Stimulating the vagus nerve typically produces: a. A decrease in the heart rate b. An increase in the heart rate c. An increase in stroke volume d. No change a. A decrease in the heart rate The vagus nerve begins maturation 26 to 28 weeks. Its dominance resul...

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 ...

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...

Which type of shock causes a temporary loss of motor, sensory, and reflex functions below the level of a lesion? - Answer- Spinal shock According to the rule of nines, burns of the anterior trunk and both anterior arms account for which percentage of body surface area? - Answer- 27 percent Which effect does parasympathetic stimulation have on the heart? A. It increases peripheral vascular resistance. B. It enhances atrioventricular node function. C. It shortens His-Purkinje and ventric...

PNVN 1631 Exam 1 Cardio PNVN1631 Medical Surgical Nursing I {Score for this quiz: 66.17 out of 80} Due Oct 4 at 8am Points 80 Questions 80 Available Oct 4 at 4am - Oct 4 at 9pm 17 hours Time Limit 135 Minutes Instructions Read the questions carefully and choose the best options for each item question. This is a 80- item questions, please be mindful of your time. When done, click submit. Good luck and thank you. Attempt History Attempt Time Score LATEST Attempt 1 37 minutes 6...