Specimen Collection Requirements
Urine, 24-hour collection. Refrigerate during collection.
Add 1 gm boric acid per 100 mL urine. Transfer aliquot of urine from a 24-hour collection to a transport tube. Record the total volume and collection time interval on the transport tube and test request form.
ALSO ACCEPTABLE: Unpreserved urine if frozen immediately after collection or preserved urine if the pH of the specimen is adjusted to 2-4 with 6M HCl or 50% acetic acid.
Ambient: 4 hours; Refrigerated (with preservative): 5 days ; Frozen: 1 month
Quantitative Chemiluminescent Immunoassay
Friday, May 24, 2019 01:55:29 PM
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