37. A 43-year-old smoker with a past medical history of asthma arrives at the clinic with reports of a cough and breathlessness with an inability to speak in full sentences. On examination, the patient is tachypneic and tachycardic, with audible wheezing. The pulse oximetry reading is 86% on room air. Which emergency medication is imperative for the clinic to have in preparation to manage acute bronchospasm for the case above?
Answer: B
B-agonist inhaler (albuterol)
In the management of acute bronchospasm, especially in patients with asthma, a B-agonist inhaler such as albuterol is crucial. This medication acts quickly to relax the muscles in the airways, providing relief from wheezing and improving airflow.
A) Angiotensin-converting enzyme inhibitors
Angiotensin-converting enzyme (ACE) inhibitors are primarily used for managing hypertension and heart failure and are not indicated for treating acute bronchospasm. They do not have a bronchodilator effect and would not alleviate the symptoms experienced by the patient.
B) B-agonist inhaler (albuterol)
This option is correct as B-agonist inhalers like albuterol are essential in treating acute bronchospasm by relaxing bronchial smooth muscles, thus improving airflow and alleviating symptoms such as cough and breathlessness. In this scenario, the patient exhibits significant respiratory distress, making albuterol the critical medication to have on hand.
C) Salmeterol inhaler
Salmeterol is a long-acting B-agonist, which is used for maintenance therapy in asthma but is not suitable for acute relief. It takes longer to act compared to albuterol and would not adequately address the immediate needs of a patient in acute respiratory distress.
D) Propranolol
Propranolol is a non-selective beta-blocker that can actually provoke bronchospasm due to its mechanism of action. It is contraindicated in patients with asthma or reactive airway disease, making it an inappropriate choice for managing acute bronchospasm.
Conclusion
The B-agonist inhaler (albuterol) is the indispensable medication for addressing acute bronchospasm in asthma, providing rapid relief of symptoms. Other options such as ACE inhibitors, salmeterol, and propranolol do not offer the necessary immediate bronchodilation needed in this emergency situation, making them unsuitable choices.