This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Ideal urine specimen for anerobic culture should be ? 
Select and explain. 
A. Mid stream urine sample, B. First few drops at morning, C. Sample by foley's catheter, D. Sample by suprapubic aspiration
D: Sample by suprapubic aspiration
Answer: D: Sample by suprapubic aspiration 
Explanation: Ans. is 'd' i.e., Sample by suprapubic aspiration Suprapubic aspiration is the preferred method of urine collection when anaerobic bacteria are suspected as cause of UTI.