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General Information

Mayo Clinic Laboratories

Fentanyl, Urine, Presumptive

Important Note

All positive results will be followed up with confirmation testing

Methodology

iCassette Fentanyl: immunoassay using competitive binding, monoclonal antibody

Specimen Requirements

Urine

Specimen Transport Temperature

The urine specimen must be collected in a clean and dry container. A random urine sample is appropriate.

Urine samples may be stored at 2-8° Celsius for up to 48 hours prior to testing. For long-term storage, specimens may be frozen and stored between -20° Celsius. Frozen samples should be thawed and mixed before testing.

Reference Values

Negative 

Day(s) Test Set Up

All

Test Classification and CPT Coding

80305