Epic ID

LAB7059

Performing Lab

ARUP

Collect

24-hour urine. Refrigerate during collection.

Specimen Preparation

Thoroughly mix entire collection (24-hour) in one container. Transport four separate 4 mL aliquots of 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. Do not exceed 4 mL in tubes.
Aliquot according to the following specifications:
1st aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well. Freeze immediately.
2nd aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well. Freeze immediately.
3rd aliquot (pH 9): Transfer 4 mL urine into a Sodium Carbonate Tube. (Min: 4 mL) Mix well. Freeze immediately.
4th aliquot: Transfer 4 mL urine into an Unpreserved Tube. (Min: 4 mL) Freeze immediately.
If collection kit is unavailable, transport four 4 mL unadjusted aliquots of urine.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 2 weeks

Performed

Mon, Wed, Fri

Remarks

Record total volume and collection time interval on tube and test request form.

Notes

Compare to StoneRisk Diagnostic Profile

Performed

Mon, Wed, Fri

Methodology

Quantitative Spectrophotometry/Quantitative Enzymatic Assay/Quantitative Ion-Selective Electrode

Reported

1-8 days

Synonyms

  • Calculi Risk
  • Calculus Risk
  • choride
  • citric aci
  • creatinine
  • Kidney Stone Profile
  • Kidney Stone Risk Assessment
  • magnesium
  • oxalate
  • phosphorus
  • potassium
  • sulfate
  • uric acid

Ordering Recommendations

Use for kidney stone risk assessment and monitoring; includes interpretation of data. Panel includes calcium, chloride, citric acid, creatinine, magnesium, oxalate, pH, phosphorous, potassium, sodium, sulfate, and uric acid.

Epic ID

LAB7059

Reference Interval

Components
Reference Interval
Calcium, Urine - per 24h
Diet
Reference Interval (mg/d)
Calcium-free diet5-40
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 years140-700140-700
9-12 years300-1300300-1300
13-17 years500-2300400-1600
18-50 years1000-2500700-1600
51-80 years800-2100500-1400
81 years and older600-2000400-1300

Magnesium, Urine per 24h12-199 mg/d
Phosphorus, Urine - per 24h40-1300 mg/d
Uric Acid, Urine - per 24h250-750 mg/d
Citric Acid, Urine - per 24h18 years and older: 320-1240 mg/d
Oxalate, Urine - per 24h
Age
Male (mg/d)
Female (mg/d)
0-12 years7-317-31
13 years and older16-4913-40

Sodium, Urine - per 24h51-286 mmol/d
Potassium, Urine - per 24h25-125 mmol/d
Chloride, Urine - per 24h140-250 mmol/d
Sulfate, Urine - per 24h6-30 mmol/d

Interpretive Data

The values determined for this specimen are placed on the chart to indicate the approximate risk associated with the particular concentrations. Increased risk is to the right of center; decreased risk, to the left. Relative supersaturation calculated for calcium oxalate, calcium hydrogen phosphate (brushite) and uric acid calculi is displayed. Relative risk increases from the middle to the right side of this chart.

Per 24h calculations are provided to aid interpretation for collections with a duration of 24 hours and an average daily urine volume. For specimens with notable deviations in collection time or volume, ratios of analytes to a corresponding urine creatinine concentration may assist in result interpretation.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

CPT Codes

82340; 82436; 82507; 84560; 83735; 83945; 84105; 84133; 84300; 84392; 83986

Notes

Compare to StoneRisk Diagnostic Profile
Collection

Epic ID

LAB7059

Performing Lab

ARUP

Collect

24-hour urine. Refrigerate during collection.

Specimen Preparation

Thoroughly mix entire collection (24-hour) in one container. Transport four separate 4 mL aliquots of 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. Do not exceed 4 mL in tubes.
Aliquot according to the following specifications:
1st aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well. Freeze immediately.
2nd aliquot (pH 2): Transfer 4 mL urine into a Sulfamic Acid Tube. (Min: 4 mL) Mix well. Freeze immediately.
3rd aliquot (pH 9): Transfer 4 mL urine into a Sodium Carbonate Tube. (Min: 4 mL) Mix well. Freeze immediately.
4th aliquot: Transfer 4 mL urine into an Unpreserved Tube. (Min: 4 mL) Freeze immediately.
If collection kit is unavailable, transport four 4 mL unadjusted aliquots of urine.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 2 weeks

Performed

Mon, Wed, Fri

Remarks

Record total volume and collection time interval on tube and test request form.

Notes

Compare to StoneRisk Diagnostic Profile
Ordering

Performed

Mon, Wed, Fri

Methodology

Quantitative Spectrophotometry/Quantitative Enzymatic Assay/Quantitative Ion-Selective Electrode

Reported

1-8 days

Synonyms

  • Calculi Risk
  • Calculus Risk
  • choride
  • citric aci
  • creatinine
  • Kidney Stone Profile
  • Kidney Stone Risk Assessment
  • magnesium
  • oxalate
  • phosphorus
  • potassium
  • sulfate
  • uric acid

Ordering Recommendations

Use for kidney stone risk assessment and monitoring; includes interpretation of data. Panel includes calcium, chloride, citric acid, creatinine, magnesium, oxalate, pH, phosphorous, potassium, sodium, sulfate, and uric acid.

Epic ID

LAB7059
Result Interpretation

Reference Interval

Components
Reference Interval
Calcium, Urine - per 24h
Diet
Reference Interval (mg/d)
Calcium-free diet5-40
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 years140-700140-700
9-12 years300-1300300-1300
13-17 years500-2300400-1600
18-50 years1000-2500700-1600
51-80 years800-2100500-1400
81 years and older600-2000400-1300

Magnesium, Urine per 24h12-199 mg/d
Phosphorus, Urine - per 24h40-1300 mg/d
Uric Acid, Urine - per 24h250-750 mg/d
Citric Acid, Urine - per 24h18 years and older: 320-1240 mg/d
Oxalate, Urine - per 24h
Age
Male (mg/d)
Female (mg/d)
0-12 years7-317-31
13 years and older16-4913-40

Sodium, Urine - per 24h51-286 mmol/d
Potassium, Urine - per 24h25-125 mmol/d
Chloride, Urine - per 24h140-250 mmol/d
Sulfate, Urine - per 24h6-30 mmol/d

Interpretive Data

The values determined for this specimen are placed on the chart to indicate the approximate risk associated with the particular concentrations. Increased risk is to the right of center; decreased risk, to the left. Relative supersaturation calculated for calcium oxalate, calcium hydrogen phosphate (brushite) and uric acid calculi is displayed. Relative risk increases from the middle to the right side of this chart.

Per 24h calculations are provided to aid interpretation for collections with a duration of 24 hours and an average daily urine volume. For specimens with notable deviations in collection time or volume, ratios of analytes to a corresponding urine creatinine concentration may assist in result interpretation.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Administrative

CPT Codes

82340; 82436; 82507; 84560; 83735; 83945; 84105; 84133; 84300; 84392; 83986

Notes

Compare to StoneRisk Diagnostic Profile

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