Av node firing - Study guides, Class notes & Summaries

NURS 420- Quiz #1 Exam Questions With Complete Solutions a wide QRS is defined as - answergreater than .12 sec Conduction system of the heart - answerSA node, AV node, bundle of His, r and l bundle branches, and Purkinje fibers What is the P wave of an ECG? - answeratrial depolarization What is the QRS complex of an ECG? - answerventricular depolarization and atrial repolarization What is the T wave of an ECG? - answerventricular repolarization PR interval - answerdelay of AV node to al...

NURS 7001 Exam 2 Questions & Answers Ch. 35. Dysrhythmias - EKG Interpretation Polarization - ANSWER->At rest Depolarization - ANSWER->Contraction Repolarization - ANSWER->Recovering, or return to resting What is the electrical conduction system of the heart? - ANSWER->SA (sinoatrial) node, through atria, AV (atrioventricular) node, bundle of his, bundle branches, purkinje fibers SA (sinoatrial) Node - ANSWER->Primary pacemaker Located in upper right atrium Inherent 60-1...

Pacemakers of the Heart correct answer: Sinoatrial (SA) node Atrioventricular (AV) node Bundle of His Bundle Branches Purkinje Fibers -SA node: p wave -SA node to AV node: PR segment -Impulse travels from Bundle of His to Bundle branches and then to Purkinje fibers: QRS complex -Repolarization of ventricles: T wave P wave correct answer: sinoatrial node (SA node) starts an impulse, as the wave of depolarization spreads through the atria, _______ is inscribed on the ECG AV nod...

telemetry exam 1Right atrium: oxygenated or deoxygenated? deoxygenated right ventricle: oxygenated or deoxygenated? deoxygenated Left atrium: oxygenated or deoxygenated? oxygenated left ventricle: oxygenated or deoxygenated? oxygenated pulmonary artery: oxygenated or deoxygenated? deoxygenated aortic arch: oxygenated or deoxygenated? oxygenated superior vena cava: oxygenated or deoxygenated? oxygenated inferior vena cava: oxygenated or deoxygenated? deo...

Relias Dysrhythmia Basic Test Answers normal sinus rhythm heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia Appearance is ALMOST NORMAL: Respiratory – Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia <60 normal sinus rhythm Sinus Tachycardia >100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) Heart Rate: Depends on underlying rhythm Regularity: Interrupts the re...

1. A missing p-wave indicated what structure is not depolarizing/firing properly thus not properly depolarizing the atrium? a. AV node b. SA node c. Bundle Branches d. Perkinje Fibers 2. When left ventricular pressure begins to increase, this will be the driving force to open what valve? a. Pulmonary valve b. Tricuspid Valve c. Aortic Valve d. Bicuspid Valve 3. What is CO with the following values: HR: 60 BPM Systolic BP: 120 mmHg, Diastolic: BP: 80 mmHg, Stroke volume: 60 mL/beat a. 1.5 L/min b...

What are the 6 parts of the cardiac conduction cycle? correct answer: -SA node -Internodal pathways -AV node -Bundle of His -R and L bundle branches -Purkinje fibers What is the SA node? correct answer: -Small cluster of cells located in the upper R atrium *-Pacemaker of the heart* What are internodal pathways? correct answer: Impulses sent by the SA node that travel through the atrial muscle fibers via the intra-atrial pathways Allows for simultaneous depolarization and contra...

Relias Dysrhythmia Basic Test Answers normal sinus rhythm heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia Appearance is ALMOST NORMAL: Respiratory – Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia <60 normal sinus rhythm Sinus Tachycardia >100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) Heart Rate: Depends on underlying rhythm Regularity: Interrupts the re...

Critical Nursing Cardiac Dysrhythmias Advanced Questions and Answers 2024 1. What is the pacemaker of the heart normally? Answer: SA Node. 2. Where does the SA node originate? Answer: Upper right atrium. 3. What is the pathway of conduction in the heart? Answer: SA node -> atria -> AV node -> bundle of his -> bundle branches -> purkinje fibers -> ventricles. 4. What does stimulation of the vagus nerve cause? Answer: Decreased firing of the SAnode and slowed impulse...

NURS 420- Quiz #1 Exam Questions With Complete Solutions a wide QRS is defined as - answergreater than .12 sec Conduction system of the heart - answerSA node, AV node, bundle of His, r and l bundle branches, and Purkinje fibers What is the P wave of an ECG? - answeratrial depolarization What is the QRS complex of an ECG? - answerventricular depolarization and atrial repolarization What is the T wave of an ECG? - answerventricular repolarization PR interval - answerdelay of AV node to al...