Atrial pacing Study guides, Class notes & Summaries

ALS/ACLS - Red Cross Final Exam [2022/2023] Graded A+ The resuscitation team suspects that hyperkalemia is the cause of cardiac arrest in a patient brought to the emergency department. Which finding on a 12-lead ECG would confirm this suspicion? Wide-complex ventricular rhythm or tall, pointed T waves A patient with dyspnea and a change in mental status arrives at the emergency department. The healthcare team completes the necessary assessments and begins to care for the patient, including ini...

Which of the following EKG machine functions should an EKG technician use to control and regulate the height of EKG waveforms on the tracing? a. Speed b. Output display c. Artifact filter d. Gain - Answer- d. Gain Which of the following methods should a EKG technician use when removing hair from electrode placement sites for telemetry monitoring? a. Dry shave b. Wet shave c. Tape d. Clippers - Answer- d. Clippers An EKG technician notes periods of sinus arrest on a patient's EKG t...

What lead insulation materials are known for reducing fibroblast in growth and susceptibility to MIO and ESC? correct answersePTFE and 80A polyurethane What are the two most common causes of ventricular safety pacing ? correct answersVentricular ectopy and loss of atrial sensing What electrode material would most likely result in higher pacing thresholds and high polarization? correct answersElgiloy Which phase of the action potential would correlate to the relative refractory period? c...

CRAT Exam 1 With 100% Correct Answers 2024 UpdateCRAT Exam 1 With 100% Correct Answers 2024 Update 1. When the technician is performing a 12 lead EKG, how many electrodes are used to record the 12 views of the heart? A. 8 B. 10 C. 12 D. 24 - Correct Answer-B.10 2. Segments and waveforms on an ECG would include all but which of the following? A. PR interval B. QRS complex C. TB wave D. QT interval - Correct Answer-C. TB wave 3. In measuring ventricular regularity if there is ...

What is pericarditis? - Inflammation/ infection of the pericardial sac What are S/S of pericarditis? - Chest pain -Sharp, stabbing -Behind breast bone -Left side of chest -Elevated with tripod position -SOB-oxygen -Low grade temp -Relieved with positioning -worse on inspiration -pericardial friction rub What are S/S of endocarditis? -Fever- night sweats, malaise, chills, fatigue -Anorexia and weight loss -Cardiac murmur -Heart failure development -Petechiae -Osler...

Afib - CORRECT ANSWER The impulse originates in the Atria • The Atrial rate is > 300 and unable to measure [N/A] • No discernable P waves - PRI & Atrial rhythm cannot be measured [N/A] • The Ventricular rhythm is irregular • QRS within normal limits • If the Ventricular rate is <100 the rhythm is controlled A-fib; if the Ventricular rate is > 100 the rhythm is uncontrolled A-fib • This is a chronic rhythm for some patients Treatment: controlled patients: ant...

The nurse assesses a client's ECG tracing and observes that not all QRS complexes are preceded by a P wave. How should the nurse interpret this observation? A. The client has hyperkalemia causing irregular QRS complexes. B. Ventricular tachycardia is overriding the normal atrial rhythm. C. The client's chest leads are not making sufficient contact with the skin. D. Ventricular and atrial depolarizations are initiated from different sites. correct answer: D. Ventricular and atrial ...

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...

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...

ACLS AHA Exam ( Updated 2024 ) Complete Questions & Answers (Solved) 100% Correct 1. A patient has a rapid *irregular wide-complex tachycardia*;The ventricular rate is 138/min.; It is asymptomatic, with a BP of 110/70 mmHG;He has a h/o angina; What action is recommended next? Answer: a) Giving Adenosine: 6 mg IV bolus; b) Giving Lidocaine: 1.5 mg IV bolus; c) Performing synchronized cardioversion; d) *Seeking expert consultation *; 2. What testsshould be performed for a patient wit...