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Laboratory Test Detail

Last Updated: April 24, 2024 @ 9:13 am

1100

Creatinine Clearance

Specimen:Collect:
  • One SST
  • Timed Urine in Timed Urine Container

Also Acceptable:
  • One Red Top
Submit:
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
  • 10 mL (Min:5 mL) Aliquot(s) Timed Urine in Sterile Specimen Container. Submit Refrigerated.
Special Handling:
  • 24 HR Urine Collection Preferred
  • Keep Specimen Refrigerated During Collection
  • State Height
  • State Volume
  • State Weight
  • State number of hours of collection.
Rejection Criteria:
  • Serum specimen must be collected within 24 hours of urine collection start or finish.
Stability:Ambient: 8 Hour(s); Refrigerated: 6 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology:
  • Colorimetric
  • Kinetic
Performed:Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 82575
Interpretive Data:Please see report for interpretive data.

ESTIMATED GFR Reference Range:
GFR = Greater than or equal to 90: Normal or increased GFR.
GFR = 60-89: Mild decreased GFR
GFR = 30-59: Moderate decreased GFR.
GFR = 15-29: Severe decreased GFR.
GFR = Less than 15: Kidney Failure.

When found over a three month period, GFR less than 60 indicates Chronic Kidney Disease.

GFR calculation is not valid for patients under age 18 years.

Please note: the equation for eGFR calculation has been updated to the 2021 CKD-EPI Creatinine equation as recommended by the National Kidney Foundation and Association for Diagnostics and Laboratory Medicine.
Please note: Estimated GFR reference range change as of 09/05/2023.
Components:
  • 1069 - CREATININE, SERUM
  • 1040 - GFR ESTIMATION
  • 1111 - CREAT CLEAR
  • 2490 - VOLUME (ML)
  • 2491 - HRS OF COLLECTION
  • 2498 - CREATININE, URINE
  • 2499 - BODY SURFACE AREA
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