Printable Test Catalog - OU Medicine

TURNAROUND TIME: 8 hours
REFERENCE RANGE: None established
METHODOLOGY: Timed endpoint
CPT: 84105
[PHPL] Pleural Fluid pH
SPECIMEN REQUIRED: Refrigerated fluid
TUBE OR CONTAINER: Heparinized syringe
SPECIAL HANDLING: Remove needle from syringe; cap tightly; must
be tested within two hours of collection;
Do NOT centrifuge specimen;
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 8 hours
REFERENCE RANGE: None established
CLINICAL USE: Determine pH of body fluid; pH of pleural fluid
relates to inflammatory states: in empyema and in
loculated effusions pleural fluid pH is CPT: 83986
[PHSTL] Stool pH
SPECIMEN REQUIRED: Refrigerated stool (random)
TUBE OR CONTAINER: Container with tight seal
SPECIMEN VOLUME: 1 gram
MINIMUM VOLUME: 0.5 gram
TEST AVAILABILITY: Daily
REFERENCE RANGE: 7.0-7.5
METHODOLOGY: Aqueous stool suspension measured with pH paper
CLINICAL USE: Detect carbohydrate and fat malabsorption:
evaluate small intestinal disaccharidase
deficiencies
CPT: 89240
[PHTNF] Free Phenytoin Level
SPECIMEN REQUIRED: Refrigerated serum
TUBE OR CONTAINER: Red
SPECIAL HANDLING: Do NOT collect in gel barrier tube
SPECIMEN VOLUME: 3 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 24 hours
REFERENCE RANGE: 0.8-2.2 mg/L
OTHER NAMES: Dilantin Free
METHODOLOGY: Fluorescent polarization immunoassay (FPIA)
CLINICAL USE: May be helpful in overdosages, since only the free
portion can be cleared by dialysis
CPT: 80186
[PHU] Urine pH
SPECIMEN REQUIRED: Refrigerated urine (random)