(L6, L8) Adrenergic Drugs Flashcards
epinephrine uses
- anaphylactic shock
- acute asthmatic atacks
- cardiac arrest
- local anesthetics
explain the differences in function of varying epinephrine doses
Low- mainly β agonist
High (therapeutic doses)- α1 response predominates and β1 effects in heart opposed by baroreceptor reflex
norepinephrine mainly effects (1) receptors and is used for (2)
1- α1, β1 agonist
2- shock (inc vascular resistance –> inc BP)
dopamine mainly effects (1) receptors and is used for (2)
1- D1 > β1 > α1 agonist
2- severe CHF, cardiogenic / septic shock (intermediate to high doses)
Isoproterenol is a (1) type adrenergic agent and is used for (2)
1- direct acting non-selective β agonist
2- emergencies: stimulates HR in patients with bradycardia or heart block
_____ is used for emergencies to stimulate HR in patients with bradycardia or heart block
isoproternol (non-selective β agonist)
Dobutamine is a (1) type adrenergic agent and is used for (2)
1- direct acting selective β1 agonist
2- acute HF, cardiogenic shock, nonexercise stress tests
______ is used for acute heart failure, cardiogenic shock, and nonexercise stress tests
dobutamine (selective β1 agonist)
Albuterol is a (1) type adrenergic agent and is used for (2)
1- direct acting selective β2 agonist, short-acting
2- acute asthma Sxs
(1) is used for acute asthma symptoms
(2) is used for long-term asthma management
1- albuterol (selective β2 agonist, short-acting)
2- salmeterol, formoterol (selective β2 agonist, long-acting)
Salmeterol and Formoterol are (1) type adrenergic agents and are used for (2)
1- direct acting selective β2 agonist, long-acting
2- asthma Sxs (slow onset and long duration of action - albuterol is opposite)
Phenylephrine is a (1) type adrenergic agent and is used for (2)
1- direct acting selective α1 agonists
2- nasal congestion, mydriasis, inc BP in hypotension due to septic shock or anesthesia or to terminate episodes of supraventricular tachycardia
_______ is used for nasal congestion, mydriasis, to increase BP in hypotension due to septic shock or anesthesia, or to increase BP / terminate episodes of supraventricular tachycardia
phenylephrine (selective α1 agonists)
Clonidine is a (1) type adrenergic agent and is used for (2)
1- direct acting selective α2 partial agonists (antagonist effects)
2- HTN
Methyldopa is a (1) type adrenergic agent and is used for (2)
1- direct acting selective α2 agonists
2- HTN in pregnancy
______ is used to treat HTN in pregnancy
methyldopa (selective α2 agonists)
Brimonidine is a (1) type adrenergic agent and is used for (2)
1- direct acting selective α2 agonists
2- glaucoma (reduces aqueous humor –> lowers intraocular pressure)
Amphetamine is a (1) type adrenergic agent with a (2) MOA, and is used for (3)
1- indirect acting agonist, releasing agent
2- inc NE release (inc BP - α agonist, heart effects - β agonist)
3- ADHD, narcolepsy