Laboratory Test DirectoryShare
|Methodology:||Quantitative Spectrophotometry (Zimmerman)|
|Performed:||Mon, Wed, Fri|
Collect: 24-hour urine. Refrigerate during collection.
Specimen Preparation: Transfer 4 mL aliquot from a well-mixed 24-hour urine collection to an ARUP Standard Transport Tube. (Min: 3 mL) Record total volume and collection time interval on transport tube and test request form. Adequate refrigeration is the most important aspect of specimen preservation. Preservation can be enhanced by adjusting the pH to 2-4. Adjust the pH by adding an acid, such as 6 mol/L HCl. A pH of less than 2 will decrease analyte stability.)
Storage/Transport Temperature: Refrigerated.
Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 2 weeks; Frozen: 1 month