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Respiratory Drugs

Beta-2 Agonists Practice Questions

20 free Beta-2 Agonists practice questions for the Pharmacology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Beta-2 Agonists questions

20 questions
  1. Q1. Which of the following intracellular changes occurs immediately after a Beta-2 agonist binds to its receptor on bronchial smooth muscle?
  2. Q2. Which Beta-2 agonist is classified as a 'rescue' medication due to its rapid onset of action and short duration?
  3. Q3. What is the primary reason why Salmeterol should not be used as monotherapy for the treatment of asthma?
  4. Q4. Which electrolyte abnormality is a well-known systemic side effect of high-dose Beta-2 agonist therapy?
  5. Q5. Which of the following drugs is a Long-Acting Beta-2 Agonist (LABA) that, unlike Salmeterol, has a rapid onset of action?
  6. Q6. A patient using an Albuterol inhaler frequently complains of 'shaking hands.' What is the pharmacological basis for this tremor?
  7. Q7. Levalbuterol is marketed as a 'pure' version of Albuterol because it contains only which isomer?
  8. Q8. Terbutaline is sometimes administered via subcutaneous injection for which non-respiratory emergency?
  9. Q9. What is the primary benefit of using a 'spacer' or holding chamber with a metered-dose inhaler (MDI) of Albuterol?
  10. Q10. Indacaterol and Olodaterol are examples of which class of medications?
  11. Q11. Frequent use of Beta-2 agonists can lead to a reduced clinical response over time. This phenomenon is known as:
  12. Q12. Which of the following is a potential cardiac side effect of Beta-2 agonists, especially at high doses?
  13. Q13. In the context of G-protein signaling, which enzyme is responsible for the degradation of cAMP, the second messenger for Beta-2 agonists?
  14. Q14. Vilanterol is currently available in the United States only in which formulation?
  15. Q15. Why is the use of non-selective beta-blockers (like Propranolol) contraindicated in patients using Beta-2 agonists for asthma?
  16. Q16. Which Beta-2 agonist is available in an oral form, though it is rarely used due to increased systemic side effects?
  17. Q17. How do Beta-2 agonists affect the release of inflammatory mediators from mast cells?
  18. Q18. Which molecular structure is a common feature of the 'catecholamine' type Beta-agonists that makes them susceptible to COMT degradation?
  19. Q19. Which statement best describes the use of Beta-2 agonists in the management of COPD compared to asthma?
  20. Q20. A patient with stable asthma is prescribed a combination of Budesonide and Formoterol. What is the pharmacological category of Budesonide?