Oxalate, 24-hour Urine w/out Creatintine

Last Modified: 11/27/2018 1:14:16 PM


Patient Preparation: Patient should refrain from taking excessive amounts of Ascorbic Acid or Oxalate-rich foods (i.e., spinach, coffee, tea, chocolate, rhubard) for at least 48 hours before the collection period.
Specimen Requirements: 10.0 mL aliquot from a well mixed 24 hour Urine Collection in a Plastic Container
Collection Instructions:

1. When starting the 24-hour period, urinate and discard (throw-away) this specimen. NOTE THE TIME
2. From that time on, collect all urine by urinating into a clean container and transfer into the provided container. 
DO NOT URINATE DIRECTLY INTO CONTAINER.
3. Try to pass the last urine just prior to the end of the 24 hour period. Add this urine into the container. 
4. Urine Specimen should be kept refrigerated during and after collection. 

For patient collection instruction sheet see Addendum D
For Spanish patient collection instruction sheet see Addendum D
For Burmese patient collection instruction sheet see Addendum D
For Arabic patient collection instruction sheet see Addendum D
Minimum Volume: 2.0 mL
Transport & Storage: Temperature/Stability: 6 days Ambient (Transport)
7 days Refrigerated 
4 months Frozen
Reference Range: 3.6 - 38.0 mg/24 hr
Methodology: Spectrophotometric
Clinical Significance: Assessment of kidney stone disorders
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 4 to 7 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed: Quest - Chantilly
PHL Test Code: OXA24
EPIC Test Code:
Send Out Test Code: 11318
Alternate Test Names: Oxalic Acid
CPT Coding: 83945

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