When should urine be collected to provide the most concentrated sample?
A. Any urine sample taken throughout the day will be the same, so it doesn't matter when it's collected.
B. At the end of the day
C. First urination of the day
D. Shortly after drinking a bowl of water
In general, for most things, A would be correct (Any time of the day). It kind of depends on what you ar collecting the sample for. I think the earlier the better but it doesnt usually matter.