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Test Code UCRER or LAB384 Creatinine, Random, Urine

Specimen Requirements

Container Type:

Sterile urine cup

 

or

 
Optimal Collection Volume: 

5 mL
Minimum Volume:

1 mL
Collection Instructions:

1. Collect a random urine specimen from the patient.

2. Ensure the lid is secured tightly before sending it to the lab.

3. Ensure that no preservatives are used.
Specimen Transport:

Refrigerate
Processing Instructions: 

1. Pour off urine into a labeled aliquot tube.

2. Centrifuge the urine aliquot.

3. Deliver the urine aliquot to the chemistry department.

Specimen Stability

Specimen Type Temperature Time
Urine Refrigerated 7 days
Room Temperature 2 days

Specimen Rejection Criteria

Quantity not sufficient

Useful For

Calculation of creatinine clearance, a measure of renal function, when used in conjunction with serum creatinine

Methodology

Roche Cobas - Enzymatic colorimetric

Reference Ranges

Reference range not established.

Day(s) Performed

24/7

Expected TAT

Same day

Performing Laboratory

Bronson Laboratory, Chemistry - Kalamazoo, Battle Creek, Paw Paw, South Haven

Sample Retention Time

7 days

CPT Code

82570

LOINC Code

2161-8