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Calcium, Urine
0020472
Ordering Recommendation
Mnemonic
UCA
Methodology
Quantitative Spectrophotometry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
24-hour urine specimens. Urine must be refrigerated during collection. Also acceptable: Random urine. 
Specimen Preparation
Adjust pH to 1.5-2.0 by adding 6M HCl in 1 mL increments. Transfer one 3 mL aliquot from a well-mixed 24-hour collection to an ARUP Standard Transport Tube. (Min: 0.5 mL) Record total volume, collection time interval, and pH on transport tube and test request form. 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
 
Remarks
 
Stability
Ambient: 48 hours; Refrigerated: 4 days; Frozen: 3 weeks 
Reference Interval
Test Number
Components
Reference Interval
Calcium free diet: 5-40 mg/d5-40 mg/d
Low Calcium Diet (800 mg/d or less)50-150 mg/d
Average Calcium diet (about 800 mg/d)100-250 mg/d
High Calcium diet (800 mg/d or greater)Effective February 21, 2012

Greater than 250 mg/d
 Creatinine, Urine - per 24h
AgeMaleFemale
3-8 years140-700 mg/d140-700 mg/d
9-12 years300-1300 mg/d300-1300 mg/d
13-17 years500-2300 mg/d400-1600 mg/d
18-50 years1000-2500 mg/d700-1600 mg/d
51-80 years800-2100 mg/d500-1400 mg/d
81 years and older600-2000 mg/d400-1300 mg/d

 Calcium/Creatinine Ratio, Urine
Age
Male
Female
0-11 months
12-23 months
24-35 months
3-4 years
5-6 years
7-9 years
10-12 years
13-15 years
16-17 years
18 years and older
30-810 mg/g
30-560 mg/g
20-500 mg/g
20-410 mg/g
10-300 mg/g
6-431 mg/g
8-300 mg/g
6-293 mg/g
10-264 mg/g
20-240 mg/g
30-810 mg/g
30-560 mg/g
20-500 mg/g
20-410 mg/g
10-300 mg/g
11-457 mg/g
12-309 mg/g
8-313 mg/g
20-271 mg/g
20-300 mg/g


Interpretive Data


Note
CPT Code(s)
82340
Components
Component Test Code*Component Chart NameLOINC
0020205Calcium, Urine - per volume18488-7
0020206Calcium, Urine - per 24h6874-2
0020207Creatinine, Urine - per volume2161-8
0020208Creatinine, Urine - per 24h2162-6
0020721Calcium/Creatinine Ratio, Urine13717-4
0097110Total Volume19153-6
0097111Hours Collected30211-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Ca urine
  • Total calcium, urine
  • Urine Calcium