Drug of choice for cystitis ?
**Core Concept**
The underlying principle being tested is the management of **uncomplicated urinary tract infections (UTIs)**, specifically **cystitis**, which is an infection of the bladder. The choice of antibiotic depends on the causative organism, local resistance patterns, and patient factors.
**Why the Correct Answer is Right**
The correct answer is often a first-line antibiotic that covers common urinary pathogens such as *Escherichia coli*. This choice is based on guidelines that consider efficacy, resistance patterns, and side effect profiles.
**Why Each Wrong Option is Incorrect**
**Option A:** May not be the first choice due to resistance patterns or side effects.
**Option B:** Could be less effective against common UTI pathogens.
**Option D:** Might not be recommended as a first-line treatment due to specific resistance concerns.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the treatment of UTIs, including cystitis, should be guided by local antibiotic resistance patterns and patient-specific factors such as allergy history and renal function.
**Correct Answer:** D. Nitrofurantoin.