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Specimen Collection Manual and Test Catalog

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SODIUM, RANDOM URINE

Geisinger Epic Procedure Code:  LAB3068    Geisinger Epic ID:  14432

SPECIMEN COLLECTION
Specimen type: 

Random urine


Preferred collection container: 
Specimen required: 

5 mL of urine; minimum 1 mL.


Special notes: 

Urine containing preservatives is not acceptable.



SPECIMEN PROCESSING
Transport temperature: 

Refrigerated.


Specimen stability: 

Room temperature/refrigerated: 14 days.


Rejection criteria: 

Urine containing preservatives is not acceptable.



TEST DETAILS
Reference interval: 

Not specified.


CPT code(s):  84300
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Test includes: 

Random urine sodium.


Methodology: 
Potentiometric
Synonyms: 

NAU


Clinical significance: 

The excretion of sodium varies with dietary intake. There is a diurnal variation of sodium excretion, with excretion being greater during daytime than during the night. Decreased levels are seen in congestive heart failure, excessive sweating, diarrhea, pyloric obstruction, malabsorption, and primary aldosteronism. Increased levels may be due to increased salt intake, failure of the adrenal glands, diabetic acidosis, salt-losing renal disease, diuretic therapy and water deprivation dehydration.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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