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Printable Test Catalog - OU Medicine

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TURNAR<strong>OU</strong>ND TIME: 24 hours<br />

REFERENCE RANGE: None established<br />

METHODOLOGY: Uricase method of direct measurement using<br />

bichromatic endpoint<br />

CLINICAL USE: Renal function test<br />

CPT: 84560<br />

[URMMARP] UR METHYLMALONIC ACID RAN PROF<br />

SPECIMEN REQUIRED: Refrigerated random urine<br />

TUBE OR CONTAINER: Plastic urine container<br />

SPECIMEN VOLUME: 5 mL<br />

MINIMUM VOLUME: 0.6 mL<br />

TEST INCLUDES: Methylmalonic acid and creatinine<br />

TEST AVAILABILITY: Daily<br />

REFERENCE RANGE: 0.4-2.5 umol/mmol crt<br />

METHODOLOGY: Gas chromatography/mass spectrometry (GC/MS)<br />

CLINICAL USE: Diagnose cobalamin (vitamin B12) deficiency<br />

CPT: 83921<br />

[UROBTM] UR UROBILINOGEN TIMED<br />

SPECIMEN REQUIRED: Refrigerated urine (24-hour or random)<br />

TUBE OR CONTAINER: Urine container<br />

SPECIAL HANDLING: Collect 24-hour urine in "P" container (no<br />

preservative); Protect specimen from light<br />

SPECIMEN VOLUME: 25 mL<br />

MINIMUM VOLUME: 15 mL<br />

TEST AVAILABILITY: Daily<br />

TURNAR<strong>OU</strong>ND TIME: 8-11 days<br />

METHODOLOGY: Colorimetric<br />

CLINICAL USE: Evaluation of biliary and liver disease,<br />

obstructive jaundice<br />

CPT: 84583<br />

[UROD] UROPORPHYRIN DECARBOXYLASE(UT)<br />

SPECIMEN REQUIRED: Frozen whole blood<br />

TUBE OR CONTAINER: Dark Green (heparin)<br />

SPECIAL HANDLING: Keep specimen protected from light<br />

SPECIMEN VOLUME: 2 mL<br />

MINIMUM VOLUME: 1 mL<br />

TEST INCLUDES: Uroporphyrin decarboxylase and hematocrit<br />

TEST AVAILABILITY: Daily<br />

REFERENCE RANGE: 35 - 60 mol/ml RBC/hr<br />

CPT: 82657<br />

[URPORPH] UR PORPHYRIA PANEL (U of TX)<br />

SPECIMEN REQUIRED: Frozen urine<br />

TUBE OR CONTAINER: Plastic urine container<br />

SPECIAL HANDLING: Collect 24 hour urine in a "B" container (5<br />

grams of sodium carbonate<br />

SPECIMEN VOLUME: 50 mL

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