Printable Test Catalog - OU Medicine

TUBE OR CONTAINER: Plastic urine contaier
SPECIAL HANDLING: Collect urine with no preservative
SPECIMEN VOLUME: 10 mL
MINIMUM VOLUME: 2 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 7 days
REFERENCE RANGE: Orotic Acid: 0.3 - 2.82 mmol/mol creatinine
Orotidine: 0.06 - 2.02 mmol/mol creatinine
METHODOLOGY: High pressure liquid chromatography (HPLC) and
tandem mass spectrometry
CPT: 82570; 83789; 83921
[OSFRAG] OSMOTIC FRAGILITY PROFILE
SPECIMEN REQUIRED: Refrigerated whole blood from patient and a
normal unrelated person (label CONTROL)
TUBE OR CONTAINER: Lavender (EDTA)
SPECIAL HANDLING: Specimen must arrive in laboratory by 2:00 p.m
on the day it is collected (Ship Mon-Fri only)
A Control specimen must be included
Specimen must arrive at performing lab within
72 hours of collection
SPECIMEN VOLUME: 5 mL
MINIMUM VOLUME: 3 mL
TEST INCLUDES: Immediate and 24 hour incubation
TEST AVAILABILITY: Monday-Saturday
TURNAROUND TIME: 72 hours
REFERENCE RANGE: Normal
METHODOLOGY: Osmotic lysis
CLINICAL USE: Useful for suspected hereditary spherocytosis
CPT: 85557
[OSMO] Serum Osmolality
SPECIMEN REQUIRED: Refrigerated serum or plasma
TUBE OR CONTAINER: Gold, Red or Light Green (heparin)
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 24 hours
REFERENCE RANGE: 280-300 mOsm/kg
METHODOLOGY: Freezing point depression
CLINICAL USE: Evaluate electrolyte balance, hyperosmolar status
and hydration status
CPT: 83930
[OSMOSTL] Stool Osmolality
SPECIMEN REQUIRED: Watery Liquid stool
TUBE OR CONTAINER: Plastic container
SPECIAL HANDLING: Stool must be in watery liquid form; specimen
will be rejcted if NOT liquid
SPECIMEN VOLUME: 5 mL