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Beta Blockers

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QuestionAnswer
Propranolol first generation Beta Blocker
First generation Beta Blockers (Non Selective) Like Propanolol they are non selective they block both Beta 1 and Beta 2 receptors
Propranolol [Inderal LA, InnoPanXL] Theraputic uses? 1. Hypertension- Lowers BP by reducing heart rate and cardiac output. 2. Treat Angina- Pain is reduced because decrease Heart Rate, Decrease Contractility and decrease oxygen demand 3. Cardiac Dysrythmias- Slows SA NODE CONDUCTION AND AVNODE conduction
Beta Blockers used in Hyperthyroidism why? Hyperthyroidism is excessive production of epinephrine. Blockaide of cardiac b1 suppresses tachycardia responses.
Beta Blockers treat Migraine how? Mechanism unknown however they can diminish frequency of them so they are only good prophylactically
Beta Blockers used in stage fright? They can relieve symptoms of stage fright such as tachycardia, sweating and tremors.
Beta Blockers and use in PHEOCHROMOCYTOMA Pheochromocytoma is a tumor which secretes large amounts of epinephrine from adrenal medulla causing excessive stimulation of heart and HTN. B blockers stop this from happening
What are side effects of Beta Blockers Bradycardia "antadote atropine or isoproterenol", Reduced cardiac output, Av Heart Block, Bronchoconstriction, inhibit gylcogenouse = hypoglycemia and mask signs
Propranolol unlike Metoprolol causes what? Propanolol causes hypoglycemia and bronchoconstriction and metoprolol does not
Propranolol and Metoprolol are the same in which Can cause rebound cardiac excitation if stop to soon, can cause severe brady cardia, can cause AV block and lead to HF .
Propranolol and Metoprolol contraindications Not given to those with sinus bradycardia, AV heart Block greater then 1, and caution with those in HF
Carvedilol, Labetalol, nebivolol Third generation B Blockers also block alpha 1. Vasodilation can lead to postural Hypotension
Beta Blocker Base Line Date for Nurses 1. Get base line heart rate. 2. antihypertension- Get Base line Blood pressure. 3. Angina Pectoris- Determine onset, frequency and duration. 4. Cardiac Dysrythmias- Basel line EKG
Beta blockers given for maintenance HTN therapy Take one or more times daily
Beta Blocker evaluation 1. Monitor Blood pressure and heart rate before each dose. Advise client to monitor BP and Heart Rate. 2. ECG monitor for improvement. 3. Bradycardia severe= withhold dose. Give atropine to raise the heart rate. 4.
Clients taking B blockers should report what symptoms of Heart Failure Shortness of breath, night coughs, swelling of legs,
Never abruptly stop a beta blocker Can cause rebound cardiac excitation.
Beta Blockers and Bronchoconstriction Beta 2 blockade can cause airway restriction with clients with COPD, and asthama. Risk is reduced if given a cardo selective drug like metoprolol vs propranolol.
Beta blockers and person with DM what to teach them Beta 1 blockaid can mask symptoms of hypoglycemia preventing early signs like tachycardia, tremors, and sweating. Hunger/fatigue/and poor concentration better indicators.
Beta blockers and psych what to know? Rarely can cause depression so should be switched to beta blocker with low lipid solubility that does not cross blood brain barrier. Highest risk 1st gen propranolol.
Beta blockers and Insulin therapy Clients need to reduce there dose
Beta blockers and Effects in neonates Monitor in early stages of birth for bradycardia, RD, and hypoglycemia. Can be up to 3-5 days.
Created by: rnanthonyh
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