BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuCalcium - urineUrinary Ca+2; Kidney stones - calcium in urine; Renal calculi - calcium in your urine; Parathyroid - calcium in urineThis test measures the amount of calcium in the urine. All cells need calcium in order to work. Calcium helps build strong bones and teeth. It is important for heart function, and helps with muscle contraction, nerve signaling, and blood clotting.See also: Calcium - bloodCalcium - bloodThe calcium blood test measures the level of calcium in the blood. This article discusses the test to measure the total amount of calcium in your blo...ImageRead Article Now Book Mark Article How the Test is Performed A 24-hour urine sample is most often needed:On day 1, urinate into the toilet when you wake up in the morning. Collect all urine (in a special container) for the next 24 hours. On day 2, urinate into the container in the morning when you wake up. Cap the container. Keep it in the refrigerator or a cool place during the collection period. Label the container with your name, the date, and the time you finish it, and return it as instructed.For an infant, thoroughly wash the area where urine exits the body.Open a urine collection bag (a plastic bag with an adhesive paper on one end). For males, place the entire penis in the bag and attach the adhesive to the skin. For females, place the bag over the labia. Diaper as usual over the secured bag.This procedure may take a few tries. An active baby can move the bag, causing urine to go into the diaper. You may need extra collection bags.Check the infant often and change the bag after the infant has urinated into it. Drain the urine from the bag into the container provided by your health care provider.Deliver the sample to the laboratory or to your provider as soon as possible. How to Prepare for the Test Many medicines can interfere with urine test results.Your provider will tell you if you need to stop taking any medicines before you have this test. Do not stop or change your medicines without first talking to your provider. How the Test will Feel The test involves only normal urination, and there is no discomfort. Why the Test is Performed Urine calcium level can help your provider:Decide on the best treatment for the most common type of kidney stone, which is made of calcium. This type of stone may occur when there is too much calcium in the urine. Kidney stoneA kidney stone is a solid mass made up of tiny crystals. One or more stones can be in the kidney or ureter at the same time.ImageRead Article Now Book Mark Article Monitor someone who has an overactive parathyroid gland, which helps control calcium level in the blood and urine. Parathyroid glandHyperparathyroidism is a disorder in which the parathyroid glands in your neck produce too much parathyroid hormone (PTH).ImageRead Article Now Book Mark Article Diagnose the cause of problems with your blood calcium level or bones. Normal Results If you are eating a normal diet, the expected amount of calcium in the urine is 100 to 300 milligrams per day (mg/day) or 2.50 to 7.50 millimoles per 24 hours (mmol/24 hours). If you are eating a diet low in calcium, the amount of calcium in the urine will be 50 to 150 mg/day or 1.25 to 3.75 mmol/24 hours.Normal value ranges may vary slightly among different laboratories. Talk to your provider about the meaning of your specific test results.The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens. What Abnormal Results Mean A high level of urine calcium (above 300 mg/day) may be due to: Chronic kidney disease High vitamin D level Vitamin DVitamin D is a fat-soluble vitamin. Fat-soluble vitamins are stored in the body's fatty tissue and liver.ImageRead Article Now Book Mark Article Leaking of calcium from the kidneys into the urine, which may cause calcium kidney stones Sarcoidosis SarcoidosisSarcoidosis is a disease in which inflammation occurs in the lymph nodes, lungs, liver, eyes, skin, and/or other tissues.ImageRead Article Now Book Mark Article Taking too much calcium Too much production of parathyroid hormone (PTH) by the parathyroid glands in the neck (hyperparathyroidism) Use of loop diuretics (most commonly furosemide, torsemide, or bumetanide) A low level of urine calcium may be due to: Disorders in which the body does not absorb nutrients from food well Disorders in which the kidney handles calcium abnormally Parathyroid glands in the neck do not produce enough PTH (hypoparathyroidism) Use of a thiazide diuretic Very low level of vitamin DVitamin DRickets is a disorder caused by a lack of vitamin D, calcium, or phosphate. It leads to softening and weakening of the bones.ImageRead Article Now Book Mark Article Open ReferencesReferencesBringhurst FR, Demay MB, Kronenberg HM. Hormones and disorders of mineral metabolism. In: Melmed S, Auchus RJ, Goldfine AB, Koenig RJ, Rosen CJ, eds. Williams Textbook of Endocrinology. 14th ed. Philadelphia, PA: Elsevier; 2020:chap 29.Klemm KM, Klein MJ, Zhang Y. Biochemical markers of bone metabolism. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 16.Thakker RV. The parathyroid glands, hypercalcemia and hypocalcemia. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 232.AllVideoImagesTogFemale urinary tract - illustration The female and male urinary tracts are relatively the same except for the length of the urethra.Female urinary tractillustrationMale urinary tract - illustration The male and female urinary tracts are relatively the same except for the length of the urethra.Male urinary tractillustrationCalcium urine test - illustration During a calcium urine test, urine is collected for a 24-hour period. The urine will later be analyzed for the amount of calcium content.Calcium urine testillustrationFemale urinary tract - illustration The female and male urinary tracts are relatively the same except for the length of the urethra.Female urinary tractillustrationMale urinary tract - illustration The male and female urinary tracts are relatively the same except for the length of the urethra.Male urinary tractillustrationCalcium urine test - illustration During a calcium urine test, urine is collected for a 24-hour period. The urine will later be analyzed for the amount of calcium content.Calcium urine testillustrationSelf Care Kidney stones - self-care Tests for Calcium - urine Calcium - urineUrine chemistryCalcium blood testCalcium - ionizedElectrolytes - urineRelated Information Milk-alkali syndrome(Condition)Hypoparathyroidism(Condition)Proximal renal tubular acidosis(Condition)Sarcoidosis(Condition)Vitamin D(Nutrition)Malabsorption(Condition)Rickets(Condition)Vitamins and Phytonutrients(In-Depth) Review Date: 7/23/2021 Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. 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