Bronchodilator and corticosteroid delivery devices plus oxygen delivery device selection concepts tested on respiratory therapist certification exams.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What do beta-2 agonists do in the airways?
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Stimulate beta-2 adrenergic receptors, causing bronchial smooth muscle relaxation and bronchodilation.- Name three short-acting beta-2 agonists (SABAs).
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Albuterol (salbutamol), levalbuterol, terbutaline.- How long do long-acting beta-2 agonists (LABAs) work?
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12 or more hours; used for maintenance therapy, not rescue.- Give two examples of LABAs.
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Salmeterol, formoterol.- How do anticholinergic bronchodilators work?
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Block acetylcholine receptors on airway smooth muscle, preventing muscle contraction.- Name a short-acting anticholinergic bronchodilator.
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Ipratropium bromide.- What type of drug is tiotropium?
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A long-acting anticholinergic bronchodilator used for maintenance therapy in COPD.- How does theophylline cause bronchodilation?
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Phosphodiesterase inhibition and adenosine receptor antagonism.- What are inhaled corticosteroids?
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Anti-inflammatory medications delivered directly to the airways to reduce airway inflammation.- Name three common inhaled corticosteroids.
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Beclomethasone, fluticasone, budesonide.- Why are inhaled corticosteroids preferred over systemic corticosteroids?
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They deliver medication directly to the lungs with minimal systemic absorption, reducing side effects.- What is a pressurized metered-dose inhaler (pMDI)?
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A handheld device with a pressurized canister that delivers a measured dose of medication as an aerosol with each actuation.- What is proper MDI technique?
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Coordinate actuation with inhalation, hold breath 5-10 seconds, wait 30-60 seconds between puffs.- What is a nebulizer?
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A device that converts liquid medication into fine aerosol particles for inhalation via mouthpiece or mask.- What is the main advantage of a nebulizer over an MDI?
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No coordination required, produces continuous aerosol, useful for patients who cannot coordinate MDI actuation.
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