RRT Pharmacology Flashcards
6 cards from real RRT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 RRT Pharmacology flashcards as text
Which bronchodilator class acts by blocking muscarinic receptors to relax airway smooth muscle?
Answer: Anticholinergics
Anticholinergics such as ipratropium block muscarinic receptors, preventing bronchoconstriction mediated by the parasympathetic nervous system.
What is the primary mechanism of action of albuterol?
Answer: Beta-2 adrenergic agonism
Albuterol selectively stimulates beta-2 adrenergic receptors on bronchial smooth muscle, causing bronchodilation.
Which inhaled corticosteroid is commonly used for long-term control of asthma in the US?
Answer: Fluticasone
Fluticasone is a commonly prescribed inhaled corticosteroid that reduces airway inflammation for long-term asthma control.
What drug class does theophylline belong to?
Answer: Methylxanthine
Theophylline is a methylxanthine bronchodilator that inhibits phosphodiesterase, raising cAMP levels and causing bronchodilation.
Which medication is used as a mucolytic to thin secretions in patients with COPD or cystic fibrosis?
Answer: N-acetylcysteine
N-acetylcysteine (Mucomyst) breaks disulfide bonds in mucus glycoproteins, reducing viscosity and aiding secretion clearance.
What is the recommended dose of epinephrine for anaphylaxis in adults?
Answer: 0.3 mg IM
The standard adult dose of epinephrine for anaphylaxis is 0.3 mg intramuscularly, typically administered into the anterolateral thigh.