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Calculi Risk Assessment, Urine
2008708
Ordering Recommendation
Use for kidney stone risk assessment and monitoring. Panel includes calcium, chloride, citric acid, creatinine, magnesium, oxalate, pH, phosphorus, potassium, sodium, and uric acid.
Mnemonic
CRA
Methodology
Quantitative Spectrophotometry/Quantitative Enzymatic/Quantitative Ion-Selective Electrode
Performed
Mon-Fri
Reported
1-7 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
24-hour urine 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. Refrigerate during collection.  
Specimen Preparation
Transport four separate 4 mL aliquots from a well-mixed 24-hour urine collection 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: 4mL) 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
Frozen.  
Unacceptable Conditions
Refer to individual components.  
Remarks
  
Stability
Room Temperature: Unacceptable; Refrigerated: 24 hours (after collection is complete); Frozen: 3 weeks  
Reference Interval
 
 
Test Number Components Reference Interval
 pH, Urine 5.0-​7.5
0020472Calcium, Urine  
 
Test Number Components Reference Interval
 Calcium free diet: 5-​40 mg/d 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) Effective February 21, 2012

Greater than 250 mg/d
 Creatinine, Urine -​ per 24h Refer to report
 Calcium/Creatinine Ratio, Urine Refer to report
0020482Oxalate, Urine            
 
Test Number Components Reference Interval
 Creatinine, Urine -​ per 24h Refer to report
 Oxalate, UrineRefer to report
0020478Phosphorus, Urine  
 
Test Number Components Reference Interval
 Phosphorus, Urine -​ mg/d Refer to report
 Phosphorus/Creatinine Ratio, Urine Refer to report
0020851Sodium, Urine  
 
Test Number Component Reference Interval
 Sodium, Urine 51-​286 mmol/d
0020473Creatinine, 24-​Hour Urine Refer to report
0020481Uric Acid, Urine 250-​750 mg/d
0020850Chloride, Urine  
 
Test Number Components Reference Interval
 Chloride, Urine 140-​250 mmol/d
0020473Creatinine, 24-​Hour Urine Refer to report
0020852Citric Acid, Urine  
 
Test Number Components Reference Interval
 Citric Acid, Urine Refer to report
 Citric Acid/Creatinine Ratio, Urine Refer to report
0020477Magnesium, Urine Effective August 15, 2011

12-​199 mg/d
0020849Potassium, Urine  
 
Test Number Components Reference Interval
 Potassium, Urine 25-​125 mmol/d
 Creatinine, Urine -​ per 24h Refer to report
0020473Creatinine, 24-​Hour Urine  
 
Age Male Female
3-​8 years 140-​700 mg/d 140-​700 mg/d
9-​12 years 300-​1300 mg/d 300-​1300 mg/d
13-​17 years 500-​2300 mg/d 400-​1600 mg/d
18-​50 years 1000-​2500 mg/d 700-​1600 mg/d
51-​80 years 800-​2100 mg/d 500-​1400 mg/d
81 years and older 600-​2000 mg/d 400-​1300 mg/d
Interpretive Data
Oxalate, Urine: Reference intervals for random urine samples (mg/L) are not available.  
Note
This panel includes the following tests: Calcium, Chloride, Citric Acid, Creatinine, Magnesium, Oxalate, pH, Phosphorus, Potassium, Sodium, and Uric Acid.
CPT Code(s)
82340; 82436; 82507; 83735; 83945; 83986; 84105; 84133; 84300; 84560
Components
Component Test Code*Component Chart NameLOINC
0020201Sodium, Urine - per volume21525-1
0020202Potassium, Urine - per volume21476-7
0020203Chloride, Urine - per volume21194-6
0020205Calcium, Urine - per volume18488-7
0020206Calcium, Urine - per 24h6874-2
0020207Creatinine, Urine - per volume20624-3
0020208Creatinine, Urine - per 24h2162-6
0020211Magnesium, Urine - per volume32024-2
0020212Magnesium, Urine per 24h24447-5
0020213Phosphorus, Urine - per volume21458-5
0020214Phosphorus, Urine - per 24h2779-7
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
0020601Sodium, Urine - per 24h2956-1
0020602Potassium, Urine - per 24h2829-0
0020603Chloride, Urine - per 24h2079-2
0097110Total Volume19153-6
0097111Hours Collected30211-7
2008709pH, Urine2756-5
* 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
  • Renal Stone Risk Panel II (Kidney Stone Risk Panel II, Urine)