Basic Dysrhythmia Test | 100% Correct Answers | Verified | Latest 2024 Version

Basic Dysrhythmia Test | 100% Correct Answers | Verified | Latest 2024 Version What is the flow of conduction in the heart? - SA Node --> AV Node --> Bundle of His --> Purkinje fibers Identify the parts of the conduction system - Left side: SA node, AV node, Right bundle branch Right side: Bundle of His, Left bundle branch, Left anterior division, Left posterior division In which AV block should we use Atropine with caution? - 2nd degree TYPE 2 What is the special quality of the heart in relation to other muscles in the body? - The heart generates its own electrical impulses What is the normal HR when the SINUS node is in charge of heart conduction? - 60-100 bpm What is the normal HR when the AV node is in charge of heart conduction? - 40-60 bpm What is the normal HR when the Purkinje Fibers is in charge of heart conduction? - 20-40 bpm What does the P-wave represent? - Atrial depolarization What does the QRS complex represent? - Ventricular depolarization What does the T wave represent? - Ventricular repolarization Why is there no wave representing atrial repolarization? - Atrial repolarization is covered by the ventricular depolarization wave What is the danger of a prolonged QT interval? - Mailed to types of ventricular tachycardia One small box - 0.04 seconds One large box - 0.20 seconds (5 tiny boxes) Normal PR interval - 0.12-0.20 seconds Normal QRS complex - 0.04-0.10 seconds Normal QT interval - Less than 0.46 seconds J Point - Junction between end of QRS complex and start of T wave To measure ST segment - Begin one small square past J point 5 Critical Rhythms - Ventricular Fibrillation Ventricular Tachycardia Asystole 3rd Degree AV block ST elevation General Interventions - Always assess the patient first RRT and PCP or Code 12-lead EKG Cardiac enzymes Patent IV Initial Interventions for ST elevation - M: morphine O: oxygen N: nitroglycerin A: aspirin - prepare for Cath lab 6 Basic Steps for Rhythm Interpretation - HR Rhythm P-wave P-R interval QRS width Other findings