Which of the following should be withheld for 48 hours before bronchial challenge testing?
A) Theophylline
B) $\beta$-Adrenergic agents
C) Anticholinergic preparations
D) Beverages containing caffeine

Question

Quizplus · Accepted Answer

Theophylline should be withheld for 48 hours before bronchial challenge testing as it can affect the bronchial reactivity and make the test results unreliable.

Which of the Following Should Be Withheld for 48 Hours β\betaβ

Which of the Following Should Be Withheld for 48 Hours $\beta$