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Pathology and Laboratory Medicine
Specimen Collection Instruction Packages

​Oxalate 24 Hour Urine Collection

Sample Collection Instruction

  • Please follow the diet and medication restrictions for 48 hours prior to and during collection time of specimen
  • Please refrigerate specimen during collection time

You can not eat the following foods for 4 days prior to the test and during the collection of the urine sample:

  • Ascorbic acid (Vitamin C) or Multi-vitamins
  • Chocolate
  • Rhubarb
  • Spinach

Some medications may interfere with results of this test. Talk to your doctor about the medication you are taking. Your doctor may tell you to stop taking some of your medication. Do not stop taking medications unless your doctor tells you to stop.

If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-534 v:1

Last Modified: Monday, September 28, 2015 |
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