antiarrhythmias class II: beta blockers Flashcards
Propranolol is a non-selective ____ adrenergic blocker. It has a local anaesthetic effect.
beta
Metoprolol is a beta ___ selective adrenergic blocker.
1
_______________ are a type of drug (other than primidone) that can be given to treat essential tremors.
Beta-blockers
Metoprolol is a class ___ antiarrhythmic.
II
Which drug from class II antiarrhythmicsis particularly effective for treating supraventricular tachycardias?
Metoprolol
Metoprolol (increases/ decreases) AV conduction velocity and is thus useful for managing supraventricular tachycardia.
decreases
It is also used in post-myocardial infarction.
How do beta-blockers influence renin secretion?
decrease
Which beta blocker commonly cuases dysplipidemia?
metoprolol
What is the treatment for beta-blocker induced hypoglycemia?
glucagon
** Beta-blockers can cause endocrinologic adverse effects like changes in blood glucose levels.
**Beta-blockers reduce HR, decrease cardiac contractility and BP.
What is the common suffix for beta-blockers?
-olol
Some beta-blockers treat hypertension partly via the inhibition of renin release via _________ adrenergic receptor blocking in the kidneys.
beta -1
Beta-blockers are contraindicated in patients that have a PR interval longer than ______ seconds.
0.24
How do beta-blockers change the PR interval?
elongation
Metoprolol acts on cardiac (myocytes/ pacemaker cells) to decrease the slope of phase 4.
pacemaker cells
(drug class)________ are often given with hydralazine to prevent reflex tachycardia caused by reflex sympathetic stimulation.
beta-blockers
