ARUP's Laboratory Test Directory

Electrolytes, Urine : 0020498

Mnemonic: ULYTE

Methodology: Ion-Selective Electrode
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect:  24-hour or random urine.  Specimen must be refrigerated during collection.

Storage/Transport Temperature:  1 mL aliquot from a well-mixed 24-hour or random collection at 2-8°C. (Min: 0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.

Remarks:  Record total volume and collection time interval on transport tube and test request form. Do not adjust specimen pH.

Stability (collection to initiation of testing):  Ambient: 8 hours; Refrigerated: 1 week; Frozen: 3 months
Reference Interval:
 
Test Number Components Reference Interval
 Sodium, Urine 51-286 mmol/day
 Potassium, Urine 25-125 mmol/day
 Chloride, Urine 140-250 mmol/day
 Creatinine (24-hour)  
 
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

Note: Reference intervals are not established for random urines.
CPT Code(s): 82436 Chloride, urine; 84133 Potassium, urine; 84300 Sodium, urine
 
 

 

 

 
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