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.

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: 2 weeks Frozen: 3 weeks

Reference Interval

Test Number
Components
Reference Interval
  Calcium, Urine - per 24h
Diet
Reference Interval (mg/d)
Calcium-free diet 5-40
Low calcium diet (less than 800 mg/d) 50-150
Average calcium diet (about 800 mg/d) 100-250
High calcium diet (greater than 800 mg/d) > 250

  Creatinine, Urine - per 24h
Age
Male (mg/d)
Female (mg/d)
3-8 years 140-700 140-700
9-12 years 300-1300 300-1300
13-17 years 500-2300 400-1600
18-50 years 1000-2500 700-1600
51-80 years 800-2100 500-1400
81 years and older 600-2000 400-1300

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

Interpretive Data



Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

82340

Components

Component Test Code* Component Chart Name LOINC
0020205 Calcium, Urine - per volume 17862-4
0020206 Calcium, Urine - per 24h 6874-2
0020207 Creatinine, Urine - per volume 2161-8
0020208 Creatinine, Urine - per 24h 2162-6
0020721 Calcium/Creatinine Ratio, Urine 13717-4
0097110 Total Volume 19153-6
0097111 Hours Collected 30211-7
* 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
Calcium, Urine