Laboratory Test DirectoryShare
Citric Acid, Urine
Collect: 24-hour Urine. Refrigerate during collection.
OR Random urine - 4 ml urine.
Specimen Preparation: Transfer a aliquot of urine to a Standard Transport Tube.
Record total volume, collection time interval, and pH on transport tube and test request form.
Also acceptable: Specimens previously preserved with boric acid.
Storage/Transport Temperature: Refrigerated.
Stability: Refrigerated: 1 week; Frozen: Indefinitely