UR 24Hr Calcium Lvl (TCU)
Department: Chemistry
Test Synonym(s): LAB814, TCU, Calcium 24 Hr Urine, U24CA
CPT Codes: 82340
Methodology: Arsenazo III
Reference Range: 0-150yrs: 100-300 mg/day Comment: Calcium free diet 5- 40 mg/day, Low to average diet 50- 150 mg/day, Average 800 mg/day 100-300 mg/day
Tube Type: 24 hour urine container - plain (no additive)
Specimen: 24 hour urine- total 24 hour collection
Volume: 50 mL urine
Minimum Volume: 24 hour urine collection
Stability: Room temperature: 2 days; Refrigerated: 4 days; Frozen: 21 days
Days Performed: Daily
Times Performed: Continuous
Special Instructions: Refrigerate during collection - label with beginning and ending collection times and dates- indicate total volume if an aliquot is sent. Mix specimen.
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