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Test ID LBAN0004 Creatinine Clearance 24 Hr Urine

Specimen Type/Requirements

Light Green top (Lithium Heparin w/gel) tube - Plasma (preferred)

Gold or Red top (Serum w/gel or w/out gel) tube - Serum

AND 

24 Hour Urine Container - Urine, aliquot from a well mixed and measured 24 Hour Urine

 

Refrigerate Urine during collection, no preservative, record total volume, mix well before aliquoting.

If more than on urine container is collected, use proportional quantities from each well mixed container for the aliquot.

 

Include patient's height, weight and 24 hour urine total volume on specimen and order.

 

Note: Blood specimen may be drawn up to 24 hours before the start or up to 24 hours after the completion of the 24 hour urine collection.

Specimen should be centrifuged and separated within 2 hours of collection.

Test may be affected by gross hemolysis, gross icterus and gross lipemia.

 

See 24-Hour Urine Collection Instructions English

See 24-Hour Urine Collection Instructions Spanish

Specimen Volume

Sioux Falls, Fargo, Bemidji, Black Hills

Serum or Plasma:

 Preferred Volume     1.0 mL   
 Minimum Volume     0.5 mL   

24 Hour Urine Aliquot/Specimen:

 Preferred Volume     1.0 mL   
 Minimum Volume     0.5 mL   


Bismarck

Serum or Plasma:

 Preferred Volume     1.0 mL   
 Minimum Volume     0.5 mL   

24 Hour Urine Aliquot/Specimen:

 Preferred Volume     1.0 mL   
 Minimum Volume     1.0 mL   

Stability/Transport

Sioux Falls, Fargo, Bemidji, Black Hills 

Serum or Plasma:

 Room Temperature     7 days     
 Refrigerated     7 days     Preferred for transport   
 Frozen     3 months     

24 Hour Urine Aliquot/Specimen:

 Room Temperature     2 days     
 Refrigerated     6 days     Preferred for transport   
 Frozen     6 months     

 

Bismarck

Serum or Plasma:

 Room Temperature     Not Acceptable     
 Refrigerated     7 days     Preferred for transport   
 Frozen     6 months     

24 Hour Urine Aliquot/Specimen:

 Room Temperature     2 days     
 Refrigerated     6 days     Preferred for transport   
 Frozen     Not Acceptable     

Performed Test Frequency

Monday through Sunday

Report Available

1 - 3 days

Additional Information

Estimated GFR calculated using the 2021 CKD-EPI creatinine equation

Methodology

Sioux Falls, Fargo, Bemidji, Black Hills 

Enzymatic

Bismarck

Jaffe

Performing Lab

Sanford Laboratories Sioux Falls, Fargo, Bismarck, Bemidji, Black Hills

CPT

82565

82570