Urinary Ca+2

If you are eating a normal diet, the expected amount of calcium in the urine is 100 to 300 mg/day. If you are eating a diet low in calcium, the amount of calcium in the urine will be 50 to 150 mg/day.

Note: mg/day = milligrams per day

High levels of urine calcium (above 300 mg/day) may be due to:

• Chronic kidney disease
• Leaking of urine from the kidneys, which causes calcium kidney stones
• Sarcoidosis
• Takiong too much calcium
• Too much production of parathyroid hormone by the parathyroid glands in the neck
• Use of water pills called loop diuretics
• Very highvitamin D levels

Low levels of urine calcium may be due to:

• Disorders in which the body does not absorb nutrients from food well
• Parathyroid glands in the neck do not produce enough parathyroid hormone (PTH)
• Use of a water pill called a thiazide diuretic
• Very low levels ofvitamin D

Images

Calcium urine test

Female urinary tract

Male urinary tract

Previous Section

Calcium Overview

Next Section

Calcium Risks

Review Date: 06/01/2011
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)