Dysrhythmias Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Learning Objectives - CORRECT ANSWER Ø Identify and analyze different types of
cardiac dysrhythmias
Ø Identify typical clinical manifestations related to different types of dysrhythmias
Ø Prioritize nursing diagnoses and develop a plan of care for clients experiencing
dysrhythmias
Ø Implement appropriate treatment modalities for common and lethal dysrhythmias
ECG (acronym) - CORRECT ANSWER Electrical Activity
Cardiac Output
Gather Data
Heart Anatomy - CORRECT ANSWER Circulatory Path of Heart
Vena Cava
Right Atrium
Tricuspid Valve
Right Ventricle
Pulmonary Artery
Lungs
Pulmonary Vein
Left Atrium
,Bicuspid Valve (Mitral)
Left Ventricle
Aorta
Cardiovascular Physiology - CORRECT ANSWER •Cardiac cycle
•Stroke Volume
•Cardiac Output: what are signs and symptoms of decreased CO? What would the cues be?
•Preload/ Afterload
•Starling's Law
•Peripheral vascular resistance
•Autonomic Nervous System
Starling's law of the heart - CORRECT ANSWER the more the cardiac muscle is
stretched, the stronger the contraction
Cardiac Output (CO) - CORRECT ANSWER = Heart Rate x Stroke Volume
CO equation examples
HR X SV = CO - CORRECT ANSWER 70 bpm x 100 ml = 7000 ml or 7 L per minute
35 bpm x 100 ml = 3500 ml or 3.5 LPM
70 bpm x 50 ml = 3500 ml or 3.5 LPM
, 150 bpm x 25ml = 3750 ml or 3.75 LPM
Cardiac Electrophysiology: Review
(types of cardiac cells) - CORRECT ANSWER It all starts at the cellular level:
Cardiac pacemaker cells:
◦Generate and conduct electrical impulses
◦Primary function is automaticity, conductivity and excitability
Myocardial cells:
◦Make up the atria and ventricles
◦Primary function is contractility
Cardiac pacemaker cells: - CORRECT ANSWER ◦Generate and conduct electrical
impulses
◦Primary function is ~automaticity,
~conductivity and
~excitability
Myocardial cells: - CORRECT ANSWER ◦Make up the atria and ventricles
◦Primary function is contractility
Cardiac Action Potential - CORRECT ANSWER depolarization,
repolarization,