| 16667-8 | Cortisol Free in 48 hour Urine |
| 16689-2 | Creatinine in 48 hour Urine |
| 16855-9 | Fat in 48 hour Stool |
| 17608-1 | Weight of 48 hour Stool |
| 17761-8 | Urobilinogen in 48 hour Stool |
| 46430-5 | Alpha 1 antitrypsin in 48 hour Stool |
| 63803-1 | Have you, or has someone near you, used this air contaminant in the last 48 hours (qualitative) |
| 63809-8 | During the last 48 hours, the study period, did you or anyone else park a car or other motor vehicle in |
| 63810-6 | During the last 48 hours, the study period, did you or anyone else start a car or other motor vehicle in |
| 63811-4 | During the last 48 hours, the study period, was there any diesel vehicles parked around the house (qualitative) |
| 63812-2 | During the last 48 hours, the study period, have you operated or been near diesel engines, e.g. bus terminal, truck stop (qualitative) |
| 93336-6 | Bile acid in 48 hour Stool |
| 93337-4 | Chenodeoxycholate+Cholate/Bile acid.total in 48 hour Stool |
| 93338-2 | Bile acid panel - 48 hour Stool |