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Questions and Answers
What is the primary therapeutic class of bronchodilators?
What is the primary therapeutic class of bronchodilators?
- Short Acting Beta2 Agonists (correct)
- Anticholinergics
- Long Acting Beta2 Agonists
- Leukotriene Modifiers
What is a common adverse reaction associated with bronchodilators?
What is a common adverse reaction associated with bronchodilators?
- Palpitations (correct)
- Weight gain
- Increased appetite
- Drowsiness
Which statement about the mechanism of action of bronchodilators is true?
Which statement about the mechanism of action of bronchodilators is true?
- They block beta2 receptors to prevent bronchoconstriction.
- They relax bronchial smooth muscle. (correct)
- They inhibit histamine release in the lungs.
- They increase mucus production in the airways.
How long do the effects of bronchodilators typically last?
How long do the effects of bronchodilators typically last?
What is the recommended dosing frequency for Salbutamol, commonly used in emergencies?
What is the recommended dosing frequency for Salbutamol, commonly used in emergencies?
Which of the following is NOT a common auxiliary label for bronchodilators?
Which of the following is NOT a common auxiliary label for bronchodilators?
Flashcards
Bronchodilators
Bronchodilators
A class of drugs that open airways by relaxing the muscles in the bronchi, allowing for easier breathing.
Short-Acting Beta2 Agonists (SABAs)
Short-Acting Beta2 Agonists (SABAs)
A type of bronchodilator that works quickly to relax the muscles in the bronchi, opening airways quickly.
Beta2 (β2) Receptor Agonists
Beta2 (β2) Receptor Agonists
A type of bronchodilator that binds to beta2 receptors in the airways, relaxing the muscles and opening up the airways.
Palpitations
Palpitations
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Shake Well Before Use
Shake Well Before Use
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Do Not Exceed Recommended Dose
Do Not Exceed Recommended Dose
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Study Notes
Short-Acting Beta2 Agonists (SABAs)
- Therapeutic Class: Short-acting beta2 (β2) adrenergic agonists (SABAs)
- Common Name: Bronchodilators
- Commonly Used To Treat: Asthma
- Mechanism of Action:
- Bind to beta2 (β2) receptors
- Relax bronchial smooth muscle
- Reverse bronchospasm and open airways
- Notes:
- Rapid onset of action (works quickly)
- Short duration of action (effects last 2-6 hours)
- "Rescue" inhalers - used when an individual is having an asthma attack to open airways
- Common Adverse Reactions:
- Palpitations, tachycardia, nervousness
- Common Auxiliary Labels:
- Shake well before use (for most Metered-Dose Inhalers)
- Do not exceed recommended dose (on all SABAs)
- Brand Names: Airomir, Ventolin, Bricanyl
- Generic Names:
- Salbutamol
- Terbutaline
- Available Doses & Forms:
- Metered-Dose Inhaler (MDI) - 100mcg per dose (1 dose = 1 puff or inhalation)
- Commonly dosed: 1-2 puffs Q4-6H
- Nebules
- Turbuhaler - 0.5mg per dose
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