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Bronchodilators

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jennraq2u's version from 2016-08-08 02:54

Section

Question Answer
Action (Albuterol) β2 receptorsr/t bronchodilation: bronchospasm relieved, histamine release is stopped,& ciliary motility is
Therapeutic Uses: • Albuterol: Inhaled, short-acting and oral, long-acting•Formoterol, salmeterol: Inhaled, long-acting/ • Terbutaline: Oral, L-A
Adverse Effects:•Oral: Tachycardia/angina d/t β1 in ♥ / tremors d/t β2 in skeletal muscle
Contraindications/Precautions:♀ (C) • CI: tachydysrhythmias
Interactions• TCAs and MAOIs   risk of tachycardia and angina
Nsg ConsiderationsCk BP, PR, Resp, lung sounds, and character of secretions before and throughout therapy.
β2-adrenergic agonists• Inhaled, short-acting =• Albuterol (Proventil, Ventolin)
Inhaled, long-acting• Formoterol, salmeterol
Oral, long-acting• Albuterol, terbutaline
Methylxanthines• Oral, long-acting • Theophylline
Anti-cholinergics• Maintenance therapy • Ipratropium, inhaled (Atrovent)
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Question Answer
Name (Methylxanthines)Theophylline (Theolair)
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Expected Action : •Theophylline relaxes bronchial smooth muscle = bronchodilation
Therapeutic Uses : •Long-term control of asthma
Adverse Effects : •Mild toxicity=>GI distress & restlessness.
dysrhythmias and seizures: unlikely @ <20 mcg/mL. Activated charcoal  absorption, lidocaine for dysrhythmias
Contraindications/Precautions : ♀ (C) •
Interactions: Caffeine CNS/♥ effects of theophylline

 

Question Answer
Expected Action•Selectively activate β2 receptors resulting in bronchodilation: bronchospasm is relieved, histamine release is inhibited, and ciliary motility is 
Therapeutic UsesInhaled, short-acting and oral, long-acting
Adverse Effects •Oral: Tachycardia/angina d/t β1 in ♥ / tremors d/t β2 in skeletal muscle
memorize
Contraindications/Precautions: ♀ (C) • CI: tachydysrhythmias
Question Answer
Interactions• TCAs and MAOIs   risk of tachycardia and angina
Inhale3-5 sec, hold 10 sec, wait 60 sec for next dose
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