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 # |
Sodium without Creatinine, 24 Hour Urine
Test Code11317
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL 24-hour urine, no preservative.
Collection Instructions:
__Record total volume and collection time on specimen
__container and requisition.
Collection Instructions:
__Record total volume and collection time on specimen
__container and requisition.
Minimum Volume
2 mL 24-hour urine, no preservative
Other Acceptable Specimens
10 mL 24-hour urine preserved with boric acid or 24-hour
urine preserved with acetic acid or 24-hour urine preserved
with HCL
10 mL 24-hour urine
urine preserved with acetic acid or 24-hour urine preserved
with HCL
10 mL 24-hour urine
Transport Container
24-hour urine, no preservative: Plastic leak-proof container
24-hour urine preserved with boric acid or 24-hour urine
preserved with acetic acid or 24-hour urine preserved with
HCL: Plastic leak-proof container
24-hour urine: Urinalysis transport tube (yellow-top, blue
fill line, preservative tube)
24-hour urine preserved with boric acid or 24-hour urine
preserved with acetic acid or 24-hour urine preserved with
HCL: Plastic leak-proof container
24-hour urine: Urinalysis transport tube (yellow-top, blue
fill line, preservative tube)
Transport Temperature
All specimen types listed: Room temperature preferred;
_Refrigerated acceptable; Frozen acceptable
_Refrigerated acceptable; Frozen acceptable
Specimen Stability
24-hour urine, no preservative or 24-hour urine preserved
with boric acid or 24-hour urine preserved with acetic acid
or 24-hour urine preserved with HCL or 24-hour urine
__Room temperature: 14 Days
__Refrigerated: 14 Days
__Frozen: 60 Days
with boric acid or 24-hour urine preserved with acetic acid
or 24-hour urine preserved with HCL or 24-hour urine
__Room temperature: 14 Days
__Refrigerated: 14 Days
__Frozen: 60 Days
Methodology
Ion Selective Electrode (ISE)
Setup Schedule
Sets up 7 days a week.
Report Available
Reports in 3 to 5 days.
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.