Creatinine clearance panel

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Test Name:

Creatinine clearance panel

Ordering Information:

Test panel includes:
• Creatinine (serum)
• Creatinine, urine
• Creatinine, urine, 24 hour
• Creatinine clearance, urine, 24 hour (CRCL)

Patient Instructions:

24-hour urine - Creatinine Clearance

Collection Instructions:

A blood specimen and a 24 hour urine specimen are required for this test panel.
It is preferred that a serum creatinine be collected when the 24 hour urine is dropped off.

Collection Device/Tube Type:
1. 24 hour urine container - plain
2. Plus:
EDM Base Lab: 5 ml blood - GOLD SST (gel)
CGY DSC: 4.5 mL blood - MINT LIHEP PST (gel)
Note: The preferred tube type at each testing sites is acceptable at the alternate site

Note: Serum creatinine must be collected within:
• 48 hours before the start of the urine collection, or
• 48 hours after the completion of the urine collection

Record the following on the requisition:
• patient's height (cm) & weight (kg)
• urine collection times
• total volume of urine collection

Submission Requirements:

5 mL urine and 1 mL serum or lithium heparin plasma

Handling/Storage Comments:

• Record collection times and total volume

All sites referring to Edmonton Base Lab:
• Refrigerate upon receipt at the collection site
• Transport at refrigerated temperatures
• EDM Base Lab: Store refrigerated until analysis

Sites referring to Calgary DSC:
• Calgary and area PSCs: Transport in ambient temperatures
• South Zone PSCs and APL rural sites: Transport at refrigerated temperatures
• CGY DSC: Store refrigerated if delay in analysis

Frequency of Testing:

Daily

Reference Range:

Creatinine clearance: 78.00 - 138.00 mL/min/1.73 m²

Refer to: Creatinine and Creatinine, urine, 24 hour

Comments:

• Results are not valid in patients with rapidly changing renal function
• Estimation of glomerular filtration by creatinine clearance is no more accurate
than using the abbreviated CKD-EPI equation (without 24 hour urine collection)

Last Reviewed:

03 May 2024

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