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: Ophthalmology
A vitreous aspirate has been collected in an emergency at 9 pm. What advice you like to give to the staff on duty regarding the overnight storage of the sample – 
Select and explain. 
A. The sample should be kept at 4°C, B. The sample should be incubated at 37°C, C. The sample should be refrigerated in deep freezer, D. The sample should be refrigerated for the initial 3 hours and then incubated at 37° C
A: The sample should be kept at 4°C
Answer: A: The sample should be kept at 4°C 
Explanation: Vitreous sample collected in an emergency is stored at 4° C.