Can you do a urine sample the night before it has to go to the lab?

Yes, you can collect a urine sample the night before it needs to go to the lab, but it's important to store it properly. The sample should be kept in a cool place, such as a refrigerator, to minimize bacterial growth and degradation. However, for the most accurate results, it's often recommended to follow specific instructions from your healthcare provider regarding timing and storage. Always check with the lab or your doctor for any specific guidelines related to your test.