Second voided Specimen- determine glucose levels Clean Catch- when urine is used to be catheterized or examined for microorganisms Random Sample- collected when the patient rises in the morning called first morning specimens 2hr Postprandial urine- 2hrs after a meal, screens for diabetes & for testing programs Catheter- require PA or nurse to insert a catheter into a patients bladder 24hr urine- collected over 24 hours to allow a quantitative chem analysis such as hormones levels and creatinine clearance rates.