| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
POTASSIUM, 24 HR URINE
Test CodeLAB436
Quest Code
11316
CPT Codes
84133
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL aliquot of a 24-hour urine collected in a no preservative plastic urine container
Minimum Volume
2 mL
Other Acceptable Specimens
Urine preserved with boric acid • Urine preserved with acetic acid • Urine preserved with HCl • Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Instructions
Record total volume and collection duration on specimen container and test requisition
Transport Container
Plastic urine container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 60 days
Refrigerated: 14 days
Frozen: 60 days
Methodology
Ion Selective Electrode (ISE)
Setup Schedule
a.m. Mon-Sat
Report Available
3 days
Reference Range
22-160 mmol/24 h
Clinical Significance
Urinary excretion of potassium is increased in primary aldosteronism. It is often increased in dehydration and in salicylate toxicity. Decreased levels are seen in malabsorption.
Performing Laboratory
| Quest Diagnostics-Lenexa |
| 10101 Renner Blvd |
| Lenexa , KS 66219-9752 |
Last Updated: February 7, 2022
