Quote Originally Posted by bmore09
Also is 2 oz enough to meet the requirements of quest diagnostics?
Yes it is.

You can see for yourself by checking out the Test Menu on their site.
Quest Diagnostics: Test Menu
Select a regional lab in,or closest to your state, then go to the left, browse by test name with the letter D (you'll be looking for Drug Abuse Panel, or in some states Drug Screen Panel ). Each of the test profiles list a "preferred amount" and a "minimum amount" of specimen volume. When going through every profile on the list, you'll see that none of their profiles list a preferred amount of more than 60 ml.