Pharm Exam 1 Flashcards
Vassopressor Indications
Sub q: added to local anesthetics
Intra-muscular: anaphylaxis
Inhaled: asthma (non routine)
Intravenous: push for asystole in Advanced Cardiac Life Support, titratable drips - used for shock, hypotension, bradycardia
Vassopressor MOA
Binds non-specifically to all Alpha and Beta receptors
Vassopressor Adverse Effects
Vesicant - harms tissue around veins
Tachycardia
Vasoconstriction- hypertension, lack of blood supply to extremities
Vassopressor nursing implications
Monitor that IV stays in vein
Antidote - phentolamine
Monitor hr, EKG, BP(IV route)
Monitor extremities
Vassopressor contra-indications
None if needed for life support
Tachycardia, hypertension, narrow angle glaucoma
Vassopressors
Epinephrine (EpiPen)
Norepinephrine (levophed)
Dopamine
Phenylephrine (neosynephrine)
Selective beta-1 blockers
A-M, “Lol” except carvedilol, Labetelol, Atenolol, bisoprolol
Metoprolol
Selective beta-1 blockers therapeutic use
Cardiac related:
Heart dysrhythmia, MI, compensated heart failure, hypertension, symptoms of hyperthyroidism/thyroid storm
Non-cardiac:
Anxiety, eye drops, glaucoma (IOP)
Selective beta-1 blockers MOA
Antagonist, Block beta-1 receptors primarily in the heart but also the eyes
Selective Beta-1 Blockers Adverse Effects
BLACK BOX WARNING: DONT STOP SUDDENLY, MAY INCREASE RISK FOR MI
Cardiac: bradycardia, hypotension, heart failure exacerbation (fluid retention), dizziness (change positions slowly)
Non-cardiac: sexual dysfunction/impotence, mood-depression, insomnia, decreased libido, may mask s/s of hypoglycemia - diabetes patients must be careful
Selective Beta-1 Blockers Client Safety Teaching and Administration
Asses BP, hold if <90/60
Asses HR, hold if <60
Don’t stop taking suddenly
May cause orthostatic hypotension and dizziness, change positions slowly
May block signs of hypoglycemia in diabetics, test glucose
Patients with heart failure should weigh daily, if they gain >5 lbs in a week or 2 lbs in a day they may be retaining fluid meaning their heart failure is now uncompensated= call provider
Selective Beta-1 Blockers Nursing Considerations
Assess, monitor, evaluate HR and BP
Daily weight checks in heart failure patients
Selective Beta-1 Blockers Contra-indications
Bradycardia, hypotension, heart block, uncompensated heart failure
Non-selective Beta Blockers
N-Z “lol” plus carvedilol, propranolol, Labetelol, timolol,
Non-selective Beta Blockers Indications
Cardiac:
Heart dysrhythmias, myocardial infarction, compensated heart failure, hypertension, symptoms of hyperthyroidism, thyroid storm
Non-cardiac:
Anxiety, eye drops = glaucoma
Carvedilol equals cardiac, propranolol equals professionals, labetalol equals labor, timolol equals Timmy’s glaucoma
Non-selective beta blockers MOA
All block beta 1 receptors
Some may block beta 2 like propanolol carvedilol and labetolol
Some may block alpha 1 like carvedilol and Labetolol
Some may release nitric oxide like nebivolol
Nonselective beta blockers adverse effects
BLACK BOX WARNING: NEVER STOP SUDDENLY SUDDEN STOPPAGE CAN INCREASE AND RISK FOR MYOCARDIAL INFARCTION ESPECIALLY FOR THOSE USING FOR CARDIAC CONDITIONS
Cardiac:
Bradycardia, hypotension, heart failure exacerbation fluid retention, dizziness - change positions in bed slowly
Non cardiac
Sexual dysfunctional impotence, mood- depression, insomnia, decreased sexual libido, May mask signs and symptoms of hypoglycemia and diabetic patients.
Non selective beta blockers client safety teaching administration
Assess blood pressure hold if below 90/60
Assess heart rate hold it below 60
Do not take do not stop taking suddenly especially for adverse effects like sexual dysfunction skip a dose if heart rate or BP are low but not indefinitely without notifying provider
Any medication that lowers blood pressure may cause orthostatic hypotension dizziness change position slowly
Educate patients with diabetes that they cannot rely on usual signs and symptoms of hypoglycemia need to rely on glucose checks
Heart failure patients should weigh daily if gain more than 5 lb in one week or 2 lb in one day call provider might be in heart failure on compensated
nonselective beta blockers Nursing considerations and implications
Assess monitor and evaluate heart rate and blood pressure, daily weight checks for heart failure patients
Non selective beta blockers contract indications
Special - asthma and COPD (beta 2 affects heart), bradycardia, hypotension, heart block, uncompensated heart failure
Alpha-1 blockers
“sin”
Tamulosin, prazosin, terazosin, silodosin, doxazosin
Alpha-1 blockers indications
Benign pratostatic hydroplasia, urinary retention, bladder obstruction kidney stones, hypertension - rare
Alpha-1 blockers moa
Prevent activation of A1 receptors throughout the body. Some drugs selectively only work in certain areas of the body.
Alpha 1 receptors are found in vascular smooth muscle arteries
Alpha 1 receptors are found in the smooth muscle of the bladder and prostate
Alpha-1 blockers adverse effects
First dose phenomenon - orthostatics/postural hypertension, hypotension, reflex tachycardia, sexual dysfunction decreased libido and impotence