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Test Code UCAR Calcium, Random, Urine

Additional Codes

Epic: LAB371

Specimen Required

Specimen Type: Urine

Collection Container/Type

Preferred: Sterile container

Submission Container/Tube: Clear top (no additive)

Specimen Volume: 3 mL

Collection Instructions: 

  1. Collect a random urine sample.
  2. No preservative

Specimen Minimum Volume

0.5 mL

Specimen Stability

Room temperature: 2 days

Refrigerated: 4 days

Frozen: 3 weeks

Reference Range

See laboratory report

Rejection Due To

Unlabeled, mislabeled, wrong tube type, QNS, exceeds specimen stability requirements.

Report Available

Same day

Clinical Significance

Calcium ions in serum decrease neuromuscular excitability, participate in blood coagulation, and activate enzymes. As part of the BMP and CMP, abnormal calcium levels lead to other underlying causes. Hypercalcemia may be seen in cancer-especially bone cancer, kidney transplant, tuberculosis, and in hyperthyroid states. Long-term lithium therapy may cause hyperparathyroidism with resulting hypercalcemia. Hypocalcemia can be seen in malabsorption, alcoholism, hypoproteinemia, hypoparathyroidism, and acute pancreatitis. Low dietary intake of calcium, vitamin D deficiency may be other causes.

Method Name

Arsenazo III Dye

Day(s) Performed