ARUP's Laboratory Test Directory

Kidney Stone Risk Panel, Urine : 0020843

Mnemonic: KID

Methodology: Quantitative Spectrophotometry/Quantitative Enzymatic
Performed: Mon-Fri
Reported: 1-6 days
Specimen Required: Collect: 24-hour urine. Use Kidney Stone/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: Specimen should be delivered to laboratory ASAP following collection. Freeze specimens immediately after aliquoting. Do not exceed 4 mL in tubes. Transport four separate 4 mL aliquots from a well-mixed 24-hour urine collection according to the following specifications:
1st aliquot: Dispense 4 mL of specimen into the Sulfamic Acid Tube. Mix well, then freeze.
2nd aliquot: Dispense 4 mL of specimen into the Sodium Carbonate Tube. Mix well, then freeze.
3rd aliquot: Dispense 4 mL of specimen into an Unpreserved Tube. Mix well, then freeze.
4th aliquot: Dispense 4 mL of specimen into an Unpreserved Tube. Mix well, then freeze.)

Storage/Transport Temperature: Frozen.

Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: 12 hours (after collection is complete); Frozen: 3 weeks
Reference Interval:
 
Test Number Components Reference Interval
 Calcium, Urine Calcium-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 18 years and older: 320-1240 mg/d
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
 Oxalate, Urine0-12 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, Urine 250-750 mg/d

Interpretive Data: Oxalate, Urine: Reference intervals for random urine samples (mg/L) are not available.
CPT Code(s): 82507; 83945; 84560; 82340
Cross References: Renal Stone Risk Panel (Kidney Stone Risk Panel, Urine)