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Calcium or Creatine Ratio

General Instructions

  • You must be fasting - nothing to eat or drink other than distilled water for 12 hours.
  • The test must begin before 10:00am.
  • On arrival at the Australian Clinical Labs Collection Centre (or at home if container and instructions have been picked up ahead of time) please empty your bladder into the toilet and discard this sample.
  • Fasting then continues until a second urine sample can be collected. NOTE: Urine flow may be promoted by drinking one glass (250ml) of distilled water.
  • Please deliver to a Australian Clinical Labs Collection Centre as soon as possible after completion.



  • 1x 70ml Yellow-top Container.
  • Available from any Australian Clinical Labs Collection Centre or your doctor.


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