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Test ID LBAN0004 Creatinine Clearance

Important Note

This test requires both a 24 hour urine specimen and a blood specimen.

Patient's current height and weight are required for calculation.

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 Type/Requirements

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

or

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

and 

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

 

Refrigerate 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.

See 24-Hour Urine Collection Instructions English

See 24-Hour Urine Collection Instructions Spanish

Specimen Volume

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   

 

Stability/Transport

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     

Performed Test Frequency

Monday-Sunday

Performing Lab

Sanford Laboratories-Bemidji

Methodology

Enzymatic

CPT

82575