Inherent rate of sa node - Study guides, Class notes & Summaries

Point of Maximal impulse At the apex of the heart (apical HR) - Base is the top of the heart; apex is the bottom. The coronary arteries Originate from the aorta just above the aortic valve - They supply arterial blood to the heart - Receive most of the blood from diastole, when the aortic valve closes. Sinoatrial node (SA node) the primary pacemaker of the heart - initiates electrical impulses at an inherent rate of 60-100 beats per minute. Depolarization sodium ions move into the cell and po...

SSM Basic Dysrhythmia Review 2023 (100% Verified Solutions, Newly Updated) SSM Basic Dysrhythmia Review SSM Basic Dysrhythmia Review Systole Phase of contraction when blood is ejected Diastole Phase of relaxation or filling Conduction System Inherent Rate of SA node 60-100 beats per minute Inherent Rate of AV node 40-60 beats per minute AV node acts as a "gate keeper" for ventricles Inherent Rate of Bundle of His 40-60 beats per minute Inherent Rate of Ventricles 20-40 beats pe...

Med-Surg Telemetryelectrical systole - correct answer activation excitation depolarization electrical diastole - correct answer recovery repolarization mechanical systole - correct answer shortening contraction emptying mechanical diastole - correct answer lengthening relaxation filling automaticity - correct answer ability to initiate and maintain electrical rhythm excitability - correct answer ability to respond to electrical stimulus conductivity - correct answ...

Basic ECG Interpretation correct answers -Normal conduction system = *electrical impulses* -Components of an ECG complex -Determining rate & regularity -Measuring intervals (PR, QRS & QT) -*Identify*: Normal Sinus Rhythm, Sinus Bradycardia, Sinus Tachycardia & Sinus Arrythmia & Treatment for each Cardiac Conduction correct answers -based on automaticity( ability of heart cells to spontaneously generate an action potential) -conductivity (ability for cardiac cells to transmit acti...

SSM Basic Dysrhythmia Review SSM Basic Dysrhythmia Review Systole Phase of contraction when blood is ejected Diastole Phase of relaxation or filling Conduction System Inherent Rate of SA node 60-100 beats per minute Inherent Rate of AV node 40-60 beats per minute AV node acts as a "gate keeper" for ventricles Inherent Rate of Bundle of His 40-60 beats per minute Inherent Rate of Ventricles 20-40 beats per minute Sympathetic Nervous System Affects atria & ventricle, increases S...

PCCN Cardiac Exam 127 Questions with Verified Answers Which of the following is the outermost lining of the heart? A. Endocardium B. Myocardium C. Transcardium D. Pericardium - CORRECT ANSWER D. Pericardium "Endo" meaning "within" is associated with the innermost lining of the heart, so eliminate A. The myocardium is associated with the heart's middle layer, so eliminate option B. The "transcardium" is somewhat of a contrived term, so eliminate C as well. The prefix in pericardium...

1 KIN 303 EXAM 3 STUDY GUIDE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Functions of the cardiovascular system Correct Answer: Pumping oxygenated blood, pumping hormones, receiving deoxygenated blood, maintaining blood pressure Relationship between exercise and heart rate, stroke volume, cardiac output, and VO2max Correct Answer: As exercise increases, heart rate, stroke volume, cardiac output, and VO2max all increase. Maximal VO2 increases in response to a ...

EKG Questions and Answers with Verified Solutions The SA node has an inherent rate of __-__bpm. 60-100 The AV node has an inherent rate of __-__bpm. 40-60 The perkinje fibers in the ventricles have an inherent rate of __-__bpm. 20-40 The "ready" or "resting" state. polarization The "firing" state or contraction. depolarization The return to "rest". repolarization The transportation of K, Na, and Ca into/out of the cardiac cell result in _____ formation. Impulse To determine the ra...

How does the sympathetic nervous system affect the heart rate? Speeds it up. How does the parasympathetic nervous system affect the heart rate? Slows it down. Define cardiac automaticity: inherent (intrinsic) ability to contract in a rhythmic pattern. Abiity of the heart to sustain its own impulses. Define cardiac irritability: ability to respond to a stimulus. At what rate does the SA node generate impulses? 60-100 a minute When the impulse leaves the SA node, how does it ...

You respond to a residence for a 68-year-old male with nausea, vomiting, and blurred vision. As you are assessing him, he tells you that he has congestive heart failure and atrial fibrillation, and takes numerous medications. The cardiac monitor reveals atrial fibrillation with a ventricular rate of 50 beats/min. Which of the following medications is MOST likely responsible for this patient's clinical presentation? - Answer Digoxin. This patient has classic signs of digitalis toxicity. Digox...