Question 1

The therapeutic level of theophylline is directly related to the blood levels achieved from the administration of the medication on a regular schedule.Which factors affect therapeutic levels? (Select all that apply.)

Accepted Answer

Factors affecting therapeutic theophylline blood levels are variance in rate of absorption,metabolism,and elimination of the drug; differing levels of theophylline in each product; and the patient's age.

Question 2

Xanthine derivatives are bronchodilators with which actions in the body? (Select all that apply.)

Accepted Answer

The main actions of xanthine-derivative bronchodilators are to relax the smooth-muscle cells in the bronchi,directly produce diuresis of the kidneys,and stimulate the myocardium.

Quiz 8: Allergy and Respiratory Medications

The therapeutic level of theophylline is directly related to the blood levels achieved from the administration of the medication on a regular schedule.Which factors affect therapeutic levels? (Select all that apply.)

Xanthine derivatives are bronchodilators with which actions in the body? (Select all that apply.)