CARDIOVASCULAR SYSTEM II STUDY GUIDE REVIEW 2022 UPDATE GUARANTEE SUCCESS
Antidysrhythmic
Diuretics
Antihypertensives
,Antidysrhythmic
,Dysrhythmia: Types
•Atrial
• Prevents proper filling of ventricles
• Decreases cardiac output by 33%
• Ex:
•
atrial fibrillation
•
atrial flutter
•Ventricular
• Life-threatening
• Ineffective ventricular filling results in decreased or absent cardiac output
• Ex:
•
premature ventricular complexes (PVCs)
•
ventricular tachycardia
•
ventricular fibrillation
, Antidysrhythmic:
Pharmacodynamics
•Block adrenergic stimulation of heart
•Depress myocardial excitability and contractility
•Decrease conduction velocity in cardiac tissue
•Increase myocardial recovery time
•Suppress automaticity
Antidysrhythmic
Diuretics
Antihypertensives
,Antidysrhythmic
,Dysrhythmia: Types
•Atrial
• Prevents proper filling of ventricles
• Decreases cardiac output by 33%
• Ex:
•
atrial fibrillation
•
atrial flutter
•Ventricular
• Life-threatening
• Ineffective ventricular filling results in decreased or absent cardiac output
• Ex:
•
premature ventricular complexes (PVCs)
•
ventricular tachycardia
•
ventricular fibrillation
, Antidysrhythmic:
Pharmacodynamics
•Block adrenergic stimulation of heart
•Depress myocardial excitability and contractility
•Decrease conduction velocity in cardiac tissue
•Increase myocardial recovery time
•Suppress automaticity