Ca channel blockers- (4 points): pathopharm II- exam 3
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What are the actions of Ca channel blockers on the myocardium?
- - decrease force of contraction (contractility)
- - decrease MVO2
What are the actions of Ca channel blockers on cardiac conduction?
- -decrease automaticity of SA node
- -decrease conduction of AV node
What are the actions of Ca channel blockers on vascular smooth muscle?
- -Decrease PVR and BP: inhibit contraction of smooth muscle in peripheral arterioles
- - Tx angina: decrease resistance in coronary vessel and improve flow + decrease in MVO2
Which two Ca channel blockers are only antihypertensives?
Plendil and DynaCirc
Which two Ca channel blockers are used to treat blood pressure and angina?
Cardene and Procardia
Which drug is only used to treat chronicstable angina and nothing else?
- *Has very serious side effects: Ventricle arrythmias and agranulocytosis
Which drug treats subarachnoide hemorrhage and prevents cerebral artery spasms post SAH?
Which drug reduces BP, treats chronicstable angina and vasospastic angina?
Which drug is most commonly used to treat arrhythmias but may also be used in hypertension and angina?
- - do not use in pts with heart block
Which drug is used to treat bp, all types of angina, atrial fibrillation and flutter?
- * do not use in pts with heart block
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