Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

SODIUM, 24 HOUR URINE

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB3067         Geisinger Epic ID: 14431

SPECIMEN COLLECTION
Specimen type:
24-hour urine
Preferred collection container:
Specimen required:
5 mL aliquot of urine; minimum 1 mL.
Special notes:
Urine containing preservatives is not acceptable. Mix well. Estimate total collection volume from 24-hour urine container. Remove required aliquot. Record total volume on both aliquot tube and request slip (if applicable).

SPECIMEN PROCESSING
Transport temperature:
Refrigerated.
Specimen stability:
Room temperature/refrigerated: 14 days.
Rejection criteria:
Urine containing preservatives is unacceptable.

TEST DETAILS
Reference interval:
Urine sodium: 40-220 mmol/24 hours.
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:
Sodium - 24-hour urine, 24-hour total volume.
Methodology:
Potentiometric
Synonyms:
NA24
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
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 12/24/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Mariana Moyer, Jared Shepherd
Frequency: Daily, Monday - Sunday
Performed stat? No
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