× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
k
1
New Topic  
Nrobison2016 Nrobison2016
wrote...
Posts: 318
Rep: 0 0
6 years ago
A patient is seen in the emergency department. The patient had been maintained on theophylline (Theo Dur), and a blood sample reveals the serum theophylline level is subtherapeutic. Which may cause a subtherapeutic serum level?
 
  a. Cimetidine use
  b. Drug tolerance
  c. Smoking
  d. Overuse of the inhaler
Read 26 times
1 Reply

Related Topics

Replies
wrote...
6 years ago
ANS: C
The patient is not tolerant to the drug if the serum theophylline levels are too low. Cimetidine would enhance the effects of theophylline, not decrease the effects. Smoking reduces the therapeutic effects of xanthine derivatives, including theophylline. Overuse of the inhaler would cause a high level of serum theophylline.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  918 People Browsing
Related Images
  
 125
  
 583
  
 328
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4

Previous poll results: What's your favorite math subject?