Printable Test Catalog - OU Medicine

SPECIMEN VOLUME: 4 mL
MINIMUM VOLUME: 2 mL
TEST AVAILABILITY: Daily
REFERENCE RANGE: 0-4 mg/dL
METHODOLOGY: High-pressure liquid chromatography (HPLC)
CLINICAL USE: Evaluate patients for phenylketonuria; monitor
therapy with phenylalanine restricted diet
CPT: 82131
[PHENYT] Phenytoin (Dilantin) Level
SPECIMEN REQUIRED: Refrigerated plasma or serum
TUBE OR CONTAINER: Light Green (heparin) or Gold
SPECIAL HANDLING: Include time of last phenytoin dose
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 8 hours
REFERENCE RANGE: 10.0-20.0 mg/L
OTHER NAMES: Dilantin
METHODOLOGY: Turbidimetric inhibition immunoassay
CLINICAL USE: Therapeutic monitor and assessment of toxicity
CPT: 80185
[PHFL] Body Fluid pH
SPECIMEN REQUIRED: Body fluid in syringe on ice
TUBE OR CONTAINER: Heparinized syringe on ice
SPECIAL HANDLING: Remove needle from syringe; cap tightly; must
be tested within two hours of collection;
Do NOT centrifuge specimen;
Specify source of fluid
REJECTION: Reject if not recieved on ice or within one hour of
collection.
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 8 hours
REFERENCE RANGE: None established
METHODOLOGY: Electrochemical
CLINICAL USE: Aid in the diagnosis of pleuritis, empyema,
bacterial peritonitis, rheumatoid effusion,
carcinoma, and esophageal rupture
CPT: 83986
[PHGAS] Gastric Fluid pH
SPECIMEN REQUIRED: Gastric sample
TUBE OR CONTAINER: Sterile container
SPECIAL HANDLING: Notify chemistry when specimen is to be
collected
SPECIMEN VOLUME: 2 mL