Kidney Stone Risk Panel, Urine
Ordering Recommendation

May be used to monitor kidney stone formation. Preferred test is urine supersaturation profile or urinary calculi risk assessment, depending on calculation need. Panel includes calcium, citric acid, creatinine, oxalate, and uric acid.

Quantitative Spectrophotometry/Quantitative Enzymatic
1-6 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
24-hour urine. Refrigerate during collection. 
Specimen Preparation
Transport four separate 4 mL aliquots from a well-mixed 24-hour urine collection using Calculi Risk/Supersaturation Urine Collection Kit (ARUP supply# 46007). Available online through eSupply using ARUP Connect™ or contact Client Services at (800) 522-2787. Aliquot according to the following specifications:
1st aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well.
2nd aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well.
3rd aliquot (pH 9): Transfer 4 mL urine into a Sodium Carbonate Tube. (Min: 4 mL) Mix well.
4th aliquot: Transfer 4 mL urine into an Unpreserved Tube. (Min: 4 mL)
Freeze specimens immediately after aliquoting. Do not exceed 4 mL in tubes.
Additional information required: Record total volume and collection time on tube and test request form. 
Storage/Transport Temperature
Unacceptable Conditions
Ambient: Unacceptable; Refrigerated: 96 hours (after collection is complete); Frozen: 3 weeks 
Reference Interval
Test Number
Reference Interval
 Calcium, Urine - per volumeCalcium-free diet: 5-40 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): > 250 mg/d
 Citric Acid, Urine - per 24h18 years and older: 320-1240 mg/d
0020473Creatinine, 24-Hour Urine
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

 Oxalate, Urine - per 24h0-12 years: 13-38 mg/d
Male 13 years and older: 7-44 mg/d
Female 13 years and older: 4-31 mg/d
Uric Acid, Urine250-750 mg/d

Interpretive Data
Oxalate, Urine: Reference intervals for random urine samples (mg/L) are not available.

CPT Code(s)
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
0020218Uric Acid, Urine - per volume21587-1
0020219Uric Acid, Urine - per 24h3087-4
0020242Citric Acid, Urine - per 24h6687-8
0020243Citric Acid, Urine - per volume21203-5
0020255Oxalate, Urine - per 24h2701-1
0020484Oxalate, Urine - per volume27222-9
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.
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