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Calcium (Ca) in Urine

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

  • Eating or drinking too much or too little calcium before the test. For the best results, follow the instructions on how much calcium to have before the test.
  • Taking medicines, such as diuretics. Many medicines can affect calcium levels in the blood.
  • Not collecting 24 hours' worth of urine.
  • Being on bed rest for a long time.

What To Think About

Citations

  1. Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.

Other Works Consulted

  • Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.

  • Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerChristopher G. Wood, MD, FACS - Urology, Oncology
Current as ofSeptember 24, 2012
1|2|3

WebMD Medical Reference from Healthwise

Last Updated: September 24, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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