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HelpTest Code U LYT Electrolytes, 24 Hour, Urine
Performing Laboratory
NRL-Chemistry
Methodology
| Profile Information: | |
| Chloride | Potassium |
| Creatinine | Sodium |
Method Name:
Ion-Selective Electrode (ISE)
General Information:
Useful for evaluating electrolyte regulation and renal
function.
Specimen Requirements
Specimen Type: Urine, 24-hour
Container/Tube: Plastic urine container
Specimen Volume: Entire collection
Collection Instructions: No preservative. Refrigerate specimen during collection.
Additional Information:
1. Starting and ending times of collection are required.
2. Follow instructions in Urine Collection in Special Instructions.
Specimen Transport Temperature
Refrigerate
Day(s) Test Set Up
Monday through Sunday
Reference Values
CHLORIDE, CALCULATED
70-250 mmol/24 hours
CREATININE, CALCULATED
Males: 0.80-2.00 g/24 hours
Females: 0.60-1.80 g/24 hours
CREATININE, URINE
20.0-300.0 mg/dL
POTASSIUM, CALCULATED
30-100 mmol/24 hours
POTASSIUM, URINE
10.0-160.0 mmol/L
SODIUM, CALCULATED
40-220 mmol/24 hours
SODIUM, URINE
15-220 mmol/L
Note: Results are calculated using total volume and length of collection and results are adjusted to units/24 hours.
Test Classification and CPT Coding
81050-Urine timed measurement
82436-Chloride
84133-Potassium
84300-Sodium