3.1 Adrenergic Agents Flashcards
Adrenergic agents function to…
Mimic the effect of Epinephrine and Norepinephrine
The use of adrenergic agents is primarily related to their effect on which parts of the body?
Heart, blood vessels, and bronchi
Adrenergic agents help with which 2 problems of the respiratory system? How do they do it?
Help asthma/bronchitis
- Bind to Beta 2 receptors
- Stimulate bronchodilation and bronchial smooth muscle relaxation
Nasal decongestion
- Bind to alpha 1 receptors
- Constrict arterioles to reduce nasal blood flow and congestion
How do adrenergic agents affect the cardiovascular system? Which cardiovascular problem do they treat?
Hypotension/shock
- Bind to various receptors
- Increase blood pressure
- Support CV system
Why would we treat an allergic reaction with adrenergic agents?
Because they cause vasoconstriction and bronchodilation
T/F we would give an adrenergic agent to a client with severe hypertension
False
The classification of the adrenergic agent Albuterol Sulfate (AKA Ventolin, salbutamol) would be…
Bronchodilator/antiasthmatic
The indications for albuterol sulfate inlcude:
acute bronchoconstriction, bronchospasm
What is the dosage form of albuterol sulfate?
Aerosol
The usual dose of albuterol sulfate would be __-__ inhalations q__-__h prn
1-2, 4-6
*15 minutes prior to exercise
What could be some side effects we would expect to see with the use of adrenergic agents?
Sympathomimetic side effects. Giving excess albuterol could cause
- Increased HR and BP
- No stool or urine production
What should we assess before administering albuterol sulfate?
- Medical history
- CV and Resp status
- Baseline VS
- Conservative use (risk of tolerance)
What is the antidote for albuterol sulfate?
Atenolol
-Emergency beta-adrenergic blocker
