A 68-year-old former smoker with COPD presents with persistent dyspnea (RR 22, SpO2 88% on room air). He denies chest pain or palpitations. His current medications include albuterol and inhaled corticosteroids. Chest X-ray shows hyperinflation without acute infiltrates. Laboratory studies reveal normal troponin. He is prescribed an inhaled medication that blocks M3 receptors in the airways, reducing vagally mediated bronchoconstriction and decreasing mucus secretion. Which of the following drugs was most likely prescribed?
- A)Albuterol
- B)IpratropiumGABARITO
- C)Omalizumab
- D)Theophylline
- E)Montelukast
Explicação
Ipratropium is an inhaled muscarinic antagonist that blocks M3 receptors and produces bronchodilation. It is particularly useful in chronic obstructive pulmonary disease and can also help in acute asthma as an adjunct. Ver explicação completa e trilha adaptativa →