Beta Agonists Flashcards
What acts on Beta 1 and 2
Isoproterenol
What acts on Beta 1
Dobutamine (net selective)
What acts on Beta 2
Terbutaline
Albuterol
Salmeterol
Formeterol
What is used to stimulate the heart in emergencies
Isoproterenol
What is used in emergency in status asthmaticus
Terbutaline
Major effects of Isoproterenol
Increase CO
Decrease TPR (beta 2)
Bronchodilation and GI SM relax (beta 2)
Why use dobutamine in CHF
Increase contractility
Increase CO without HR change
How does Terbutaline work
Bronchodilator
Reduce uterine contractions in premature labor
What is Albuterol for
Asthma Sx relief
Inhaled bronchodilator
What are the long acting bronchodilators (not for bronchospasm)
Salmeterol
Formeterol
When is Isoproterenol most reliable
Parenteral
Inhaled
Why is Terbutaline longer acting
Resorcinol ring not metabolized by COMT
Oral, Inhaled, SC
Which lose selectivity at high concentrations
Terbutaline
Albuterol
Salmeterol
Formeterol
Which treat asthma without affecting heart
Terbutaline
Albuterol
Salmeterol
Formeterol
