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Test Code FDIRU Diuretic Screen, Urine

Reporting Name

Diuretic Screen, Urine

Performing Laboratory

Medtox Laboratories, Inc.

Specimen Type


Specimen Required

10 mL aliquot of random or spot urine collected without preservative in a plastic container. Send specimen refrigerated.

Specimen Minimum Volume

1.2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  180 days
  Ambient  72 hours

Reject Due To

Hemolysis NA
Lipemia NA
Icteric NA
Other NA

Reference Values

Qualitative diuretic screen includes: benzthiazide, bumetanide, chlorothiazide, chlorthalidone, furosemide, hydrochlorothiazide, hydroflumethiazide, and metolazone.


CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FDIRU Diuretic Screen, Urine Not Provided


Result ID Test Result Name Result LOINC Value
Z2593 Diuretic Screen 75369-9
Z2594 Benzthiazide 3399-3
Z2595 Bumetanide 3409-0
Z2596 Chlorothiazide 9508-3
Z2597 Chlorthalidone 3478-5
Z2598 Furosemide 3660-8
Z2599 Hydrochlorothiazide 3676-4
Z2600 Hydroflumethiazide 40469-9
Z2601 Metolazone 12347-1

Analytic Time

5 days

Method Name

High Performance Liquid Chromatography with Ultraviolet Detection; (HPLC-UV)