NURB 4220 Cardiac Rhythms. Exam Questions With 100% Verified Answers

NURB 4220 Cardiac Rhythms. Exam Questions With 100% Verified Answers Characteristics of sinus bradycardia - answer- rhythm is regular - P: QRS ratio is 1:1 -PRI is less than or equal to 0.2 sec. -QRS complex is less than or equal to 0.12 sec. - rate 60 BPM possible causes of sinus bradycardia - answer- athlete - teenager - sleeping/ sedation - vagal/parasympathetic effect - Heart Dx - drug effects When is sinus bradycardia a problem? - answerwhen it become symptomatic or EKG changes What do you want to check with sinus bradycardia? - answer- electrolytes ©BRAINBARTER 2024/2025 - thyroid and troponin levels what is the treatment for sinus bradycardia? - answer- atropine and or pacemaker Characteristics of sinus tachycardia - answer- rhythm is regular - PRI is less than or equal to 0.2 sec. - QRS complex is less than or equal to 0.12 second - PRI to QRS ratio is 1:1 - rate is 100- 150 BPM possible causes of sinus tachycardia? - answer- caffeine - exercise - dehydration - fever - shock - CV compromise - hypoxia Treatment for sinus tachycardia? - answer- rest, fluids, blood - Calcium Channel/ Beta Blockers - then ablation ©BRAINBARTER 2024/2025 What is sick sinus syndrome? - answer- irregular sinus generations w/ breaks in between - tachy - brady syndrome What is the root cause of sick sinus syndrome? - answer- dysfunctional SA node where is Sick sinus syndrome commonly seen? - answer- aging - scarring from age degeneration - after cardiac surgery - older people Treatment for Sick Sinus syndrome? - answer- pacer What is long QT syndrome? - answer- inherited Heart condition causing prolonged QT interval - the heart takes longer to respond to repolarization in between beats When is Long QT syndrome clinically significant? - answer- when QT interval is longer than 510 MS (0.51 sec.) possible causes of Long QT syndrome? - answer- drug effects - physical/ emotional stress - startle response What can Long QT interval re