QuestionSBA
QuestionChoice
Whilst Clarithromycin would be an appropriate option for a large number of lower respiratory tract infections, it would not successfully treat an infection caused by Pseudomonas aeruginosa.
10035469
c
Clarithromycin
QuestionChoice
Whilst Aztreonam would successfully treat a pseudomonal infection, it would not be typically considered a first-line option. It can be given IV or IM but may be prescribed as a nebulised solution in specific cases of chronic Pseudomonas aeruginosa infection in patients with Cystic Fibrosis.
10035470
d
Aztreonam
QuestionChoice
This penicillin antibiotic would not successfully treat an infection caused by Pseudomonas aeruginosa.
10035468
b
Amoxicillin
QuestionChoice
This antibiotic is typically used to treat lower urinary tract infections and would not treat an infection caused by Pseudomonas aeruginosa.
10035471
e
Nitrofurantoin
QuestionChoice
This antibiotic has antipseudomonal coverage and is a more appropriate first-line option than Aztreonam, which tends to be prescribed in more specialist settings.
10035467
a
Ciprofloxacin
Concept
Chapter
2693
3698
Cystic Fibrosis
Topic
132
Respiratory
19497
Ciprofloxacin is an effective initial treatment for respiratory infections caused by Pseudomonas aeruginosa in patients with cystic fibrosis.
A 17-year-old female with a history of Cystic Fibrosis complains of a worsening cough, productive of yellow sputum. She has had this cough for the last week. When asked, she denies chest pain or haemoptysis. As a result of her symptoms, a sputum culture is taken, which is subsequently positive for Pseudomonas aeruginosa.

What is the most appropriate initial treatment to commence?
a