Plastic container with 25 mL of 50% glacial acetic acid (15 mL for pediatric patients) as preservative (preferred). Container available from MLabs. (Specimen with no preservative will be accepted.)
10 mL aliquot of 24 hour urine collection
10 mL aliquot of 24 hour urine collection
Collect 24 hour urine specimen. Add 25 mL of 50% glacial acetic acid (15 mL for pediatric patients) to container prior to start of collection. Following collection, mix well, measure 24 hour urine volume, aliquot 10 mL into a plastic urine container and refrigerate. Record total 24 hour urine volume and collection dates/times on request form. Specimens with no preservative are also acceptable: add 50% glacial acetic acid to container following collection, mix well and send 10 mL aliquot (preferred); alternatively a non-acidified aliquot will be accepted. Patient should avoid bananas, pineapple, walnuts, chocolate, kiwi, cough medicine and avocados prior to and during collection; also phenothiazines should be withheld for several days prior to collection if possible.
24 hour urine. Patient should avoid bananas, pineapple, walnuts, chocolate, kiwi, cough medicine and avocados prior to and during collection; also phenothiazines should be withheld for several days prior to collection if possible. Container MUST be labeled with date and time collection started and finished. Instruct the patient to void at 8:00am and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24 hr collection period, ie., 8:00am the next morning. Screw the lid on securely. Transport the specimen promptly to the laboratory. Refrigerate during collection. Non-acidified container (no preservative) is acceptable. If collected in container not containing acid preservative, indicate on container and requisition: "Not Collected in Acid".
Monday, Thursday
8 hours
Liquid Chromatography - Tandem Mass Spectrometry (LC-MS/MS)
3 - 10 mg/24 hrs (15.6-52.0 uMol/24 hrs).
Aid in the diagnosis of carcinoid tumors.
Patient should avoid bananas, pineapple, walnuts, chocolate, kiwi, cough medicine and avocados for 24 hours prior to and during collection; also phenothiazines should be withheld for 3 days prior to collection if possible.
Tested using a laboratory developed assay performed on a Waters liquid chromatography tandem mass spectrometry (LC-MS/MS) system. Results determined from different manufacturers and/or methods may not be comparable.
1695-6
83497
20314
May be collected in plain (no preservative) container and acid added at the end of collection. It is preferred to have acid added as soon as possible at the client site, mixed, and an aliquot sent. A non-acidified aliquot may also be sent. [rev 9/08]