Calcium (Ca) in Urine

Urinary Calcium

What Affects the Test

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

• Too much or too little calcium in the diet.
• Taking medicines, such as diuretics, growth hormones, parathyroid hormone (PTH), antacids, or steroids.
• Taking too much vitamin D, lithium, laxatives, theophylline, or aspirin.
• Not collecting 24 hours' worth of urine.
• Too much sun exposure, which affects vitamin D levels.
• Being on bed rest for a long time.

Go to previous section	Go to top of page	Go to next section
Author:	Monica Rhodes	Last Updated: September 29, 2008
Medical Review:	E. Gregory Thompson, MD - Internal Medicine Tushar J. Vachharajani, MD, FASN, FACP - Nephrology
© 1995-2009 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.