Beta blockers "olols" Metoprolol Propranolol Carvedilol
Pharmacodynamics of beta blockers -prevent beta-adrenergic receptors from being stimulated -decrease the oxygen demands of heart and decrease angina -causes blockade in myocardium/electrical conduction Decrease hr Vasodilator -reduces release...
Pharmacodynamics of beta blockers ✅-prevent beta-adrenergic receptors from being
stimulated
-decrease the oxygen demands of heart and decrease angina
-causes blockade in myocardium/electrical conduction
Decrease hr
Vasodilator
-reduces release of renin
Overall role of beta blocker ✅slow hr by suppressing the sa node which slows the
speed of conduction through the av node
-decreases the force of contraction
-decrease bp
-reduce contractility
How do beta blockers work ✅block epinephrine from binding to the beta receptors
which causes the heart to beat slower and reduces blood pressure, lowering bp
Beta blocker prototype drug ✅metoprolol (lopressor)
Side effects of beta blockers ✅bradycardia
Bronchoconstriction
Decreased cardiac output
Av block
Hypotension
Class i ✅lidocaine
Nursing interventions beta blockers ✅-do not abruptly stop medication
-monitor blood pressure, pulmonary wedge pressure, and cardiac rhythm and
conduction (check ekgs)
Metoprolol ✅treatment of hypertension, angina, controlled congestive heart failure
-do not abruptly stop medication
-goal: decrease workload on heart and its oxygen need
, Goal of anti-hypertension medications ✅affect/change one or more mechanisms that
affect peripheral resistances
Starting medication for high bp ✅diuretic
Loop diuretics ✅furosemide (lasix)
Bumetanide
Torsemide
-always have ide
Furosemide (lasix) ✅loop diuretic
Treats peripheral and pulmonary edema and hypertension by inhibiting the reabsorption
of sodium, chloride, and water in the ascending loop of henle
Pharmacodynamic of loop diuretics ✅block reabsorption of sodium/chloride and
prevent reabsorption of water in loop of henle
-decrease blood volume
-excretion of water and sodium
Side effects of loops diuretic ✅ototoxicity/tinnitus (hearing problems), dehydration,
electrolyte imbalance, hypotension, hypokalemia
Hypokalemia ✅deficient potassium in the blood (normal 3.5-5)
-issues are generally cardiac and dysrhythmia related
Thiazide diuretics ✅hydrochlorothiazide (hctz)
-always have thiazide in them
Pharmacodynamics of thiazide diuretic ✅block reabsorption of sodium/chloride and
prevent reabsorption of water in distal convoluted tubule
Side effects of thiazide diuretic ✅dehydration
Hypokalemia
Hypotension
Hyperglycemia
Spironolactone ✅potassium sparing diuretic
Manage edema and hypertension by inhibiting transport of sodium in distal convoluted
tubules, decreases sodium and water reabsorption but increases potassium retention
Pharmacodynamics potassium sparing diuretics ✅block action of aldosterone which
results in potassium retention and excretion of na and h2o
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.
