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11318: Oxalic Acid, 24-hour Urine without Creatinine [11318X] Print View
Total Volume     mL 
Oxalic Acid, 24-Hour Urine S  3.6 - 38  mg/24 h 

PRIMARY
1 Urine 24 hour 10 (2) mL   Frozen - 4 Month(s)/Refrigerated - 7 Day(s)/Room Temperature - 6 Day(s)  
ALTERNATE

Please submit a 10 mL aliquot of a 24-hour collection.
Collect urine with 25 mL of 6N HC1 to maintain a pH below 3.
Refrigerate during and after collection.
Patient should refrain from taking excessive amounts of Ascorbic Acid
or Oxalate-rich foods (i.e., spinach, coffee, tea, chocolate, rhubarb)
for at least 48 hours prior to the collection period.
Setup Schedule
Tuesday, Thursday, Saturday

Reported (Analytical Time)
Next day

CPT Code
83945

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport Temperature: Room temperature / Okay to thaw






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