• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

Card Range To Study



Play button


Play button




Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

22 Cards in this Set

  • Front
  • Back
Use and mechanism of Epinephrine
Direct sympathomimetic; alpha1, alpha2, beta1 (low-doses), beta2 agonist: anaphylaxis, glaucoma (open angle), asthma, hypotension
Use and mechanism of Norepinephrine
Direct sympathomimetic; alpha1, alpha2>beta1: hypotension (but decreased renal perfusion)
Use and mechanism of Isoproterenol
Direct sympathomimetic; beta1=beta2: AV block (rare)
Use and mechanism of Dopamine
Direct sympathomimetic; D1=D2>beta>alpha, inotropic and chronotropic: shock (increased renal perfusion), heart failure
Use and mechanism of Dobutamine
Direct sympathomimetic; beta1>beta2, inotropic but not chronotropic: shock, heart failure, cardiac stress testing
Use and mechanism of Phenylephrine
Direct sympathomimetic; alpha1>alpha2: pupillary dilation, vasconstrictionm, nasal decongestion
Use and mechanism of Albuterol, terbutaline
Direct sympathomimetic; beta2>beta1: albuterol for acute asthma; terbutaline reduces premature uterine contractions
Use and mechanism of Ritodrine
Direct sympathomimetic; beta2: reduces premature uterine contractions
Use and mechanism of Amphetamine
Indirect sympathomimetics; indirect general agonist, releases stored catecholamines: narcolepsy, obesity, attention deficit disorder
Use and mechanism of Ephedrine
Indirect sympathomimetics; indirect general agonist, releases stored catecholamines: nasal decongestion, urinary incontinence, hypotension
Use and mechanism of Cocaine
Indirect sympathomimetics; indirect general agonist, uptake inhibitor: causes vasoconstriction and local anesthesia
Use and mechanism of Clonidine, alpha-methyldopa
Sympathoplegics; centrally acting alpha2-agonist, decreased central adrenergic outflow: hypotension, especially with renal disease (no decrease in blood flow to kidney)
Selective beta2-agonists
MAST: Metaproterenol, Albuterol, Salmeterol, Terbutaline
Use, mechanism, and toxicity of Phenoxybenzamine (irreversible) and Phentolamine (reversible)
use: pheochromocytoma; mech: nonselective alpha-blocker; toxicity: orthostatic hypotension, reflex tachycardia
Use, mechanism, and toxicity of Prazosin, Terazosin, Doxazosin
use: hypertension, urinary retention in BPH; mech: alpha1-selective blocker; toxicity: 1st dose orthostatic hypotension, dizziness, headache
Use, mechanism, and toxicity of Mirtazapine
use: depression; mech: alpha2-selective blocker; toxicity: sedation, increased serum cholesterol, increased appetite
Beta-blocker uses
Hypertension (decrease CO and decrease renin); Angina pectoris (decrease heart rate and contractility, resulting in decrease O2 consumption); MI; SVT (propranolol, esmolol: decrease AV conduction velocity); CHF; Glaucoma (timilol: decrease decreation of aqueous humor)
Beta-blocker toxicity
impotence, exacerbation of asthma, cardiovascular adverse effects (bradycardia, AV blcok, CHF), CNS adverse effects (sedation, sleep alterations); use with caution in diabetics
Nonselective beta antagonists
Propranolol, timolol, nadolol, pindolol, labetalol
Beta-1 selective antagonists
A BEAM of Beta1-blockers: Acebutolol (partial agonist), Betazolol, Esmolol (short acting), Atenolol, Metoprolol
Nonselective alpha- and beta-antagonists
Carvedilol, labetalol
Partial beta-agonists
Acebutolol, pindolol