ARUP's Laboratory Test Directory

Kidney Stone Risk Panel, Urine : 0020843

Mnemonic: KID

Methodology: Refer to individual components
Performed: Mon-Fri
Reported: Refer to individual components
Specimen Required: Collect:  24-hour urine.  Specimen should be refrigerated during collection.

Transport:  1st aliquot:  No adjustment to pH.  Transport 4 mL aliquot at 2-8°C. (Min:  0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.  Record total volume, collection time interval, and "no adjustment to pH" on transport tube and test request form.
2nd aliquot:
  Adjust entire 24-hour collection to a pH less than or equal to 2 by adding 6M HCl (approximately 10 mL HCl/24-hour specimen based on normal adult output of 1000-2000 mL/24 hours.  Pediatric specimens will require < 10 mL to reach the correct pH).  Mix well.  Transport 4 mL aliquot at 2-8°C. (Min:  0.5 mL) Submit specimen in an ARUP Standard Transport Tube.  Record 24-hour total volume, collection time interval, and pH on transport tube and test request form.
3rd aliquot:
 
Adjust the remaining 24-hour collection to a pH greater than or equal to 8 by adding 6M NaOH (approximately 20 mL 6M NaOH/24-hour specimen based on normal adult output of 1000-2000 mL/24 hours.  Pediatric specimens will require < 20 mL to reach the correct pH).  Mix well and allow the entire 24-hour collection to stand for 15 minutes.  Transport 4 mL aliquot at 2-8°C. (Min:  0.5 mL) Submit specimen in an ARUP Standard Transport Tube.  Record 24-hour total volume, collection time interval, and pH on transport tube and test request form.


Stability:  Ambient: 8 hours; Refrigerated: 4 days; 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  
 
Male Female
3-8 years:      140-700 mg/d
9-12 years:    300-1300 mg/d
13-17 years:  500-2300 mg/d
18-50 years:  1000-2500 mg/d
51-80 years:  800-2100 mg/d
81 years and older: 600-2000 mg/d
3-8 years:      140-700 mg/d
9-12 years:    300-1300 mg/d
13-17 years:  400-1600 mg/d
18-50 years:  700-1600 mg/d
51-80 years:  500-1400 mg/d
81 years and older: 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

CPT Code(s): 82507 Citric acid; 83945 Oxalate; 84560 Uric acid; 82340 Calcium
 
 

 

 

 
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