This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Collection of urine sample of a patient of TB kidney is done: 
Select and explain. 
A. 24 hours urine, B. 12 hours urine, C. In early morning, D. Any time
C: In early morning
Answer: C: In early morning 
Explanation: Ans. is 'c' i.e., In early morningSampling - Collect the whole of patient early morning urine on three consecutive days (Previously it was 24 hours urine collection but now it is not recommended).Culture of three morning urine samples yields a definitive diagnosis in 90% cases.