| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
CREATININE with eGFR
Test CodeLAB66
CPT Codes
82565
Includes
Creatinine and estimated glomerular filtration rate (eGFR)
Preferred Specimen
One 4.5 mL Light Green top tube
Pediatric: One light green top microtainer
Pediatric: One light green top microtainer
Other Acceptable Specimens
Dark Green top, Red top,or Gold top tube
Instructions
Sample must be centrifuged within two hours of collection.
Transport Temperature
Refrigerated
Specimen Stability
Centrifuge within 2 hours of collection
Ambient: 7 days Refrigerated: 7 days Frozen: 3 months
Ambient: 7 days Refrigerated: 7 days Frozen: 3 months
Methodology
Alkaline Picrate-Kinetic
Setup Schedule
Sunday-Saturday
Reference Range
| Age | Sex | Reference Range (mg/dl) |
| 0 days-12 months | Female | 0.20-0.45 |
| 1-5 years | Female | 0.20-0.50 |
| 6-10 years | Female | 0.25-0.60 |
| 11-15 years | Female | 0.35-0.85 |
| ≥ 16 years | Female | 0.60-1.05 |
| 0 days- 12 months | Male | 0.20-0.45 |
| 1-5 years | Male | 0.20-0.50 |
| 6-10 years | Male | 0.25-0.60 |
| 11-14 years | Male | 0.35-0.85 |
| ≥ 15 years | Male | 0.75-1.35 |
Clinical Significance
Interpretive Information
The eGFR is calculated based on the Modification of Diet in Renal Disease (MDRD) study equation:
eGFR = 186 x (SCr) -1.154 x (Age, years)-0.203 x 0.742(if female) x 1.210(if African American)
The eGFR estimates kidney function and is used to determine a patient’s stage of chronic kidney disease based on National Kidney
Foundation guidelines:
• Stage 1 comprises patients who have kidney damage but a normal eGFR (90 or higher).
• Stage 2 comprises patients with a mild reduction in eGFR (60 to 89).
• Stage 3 consists of a moderate eGFR reduction (30 to 59).
• Stage 4 consists of a severe eGFR reduction (15 to 29).
• Stage 5 consists of kidney failure, marked by eGFR <15.
Note: eGFR is not calculated for children <18 years old. For these patients, the Bedside Schwartz calculation is preferred; a calculator is
available on the NKF website.
The eGFR is calculated based on the Modification of Diet in Renal Disease (MDRD) study equation:
eGFR = 186 x (SCr) -1.154 x (Age, years)-0.203 x 0.742(if female) x 1.210(if African American)
The eGFR estimates kidney function and is used to determine a patient’s stage of chronic kidney disease based on National Kidney
Foundation guidelines:
• Stage 1 comprises patients who have kidney damage but a normal eGFR (90 or higher).
• Stage 2 comprises patients with a mild reduction in eGFR (60 to 89).
• Stage 3 consists of a moderate eGFR reduction (30 to 59).
• Stage 4 consists of a severe eGFR reduction (15 to 29).
• Stage 5 consists of kidney failure, marked by eGFR <15.
Note: eGFR is not calculated for children <18 years old. For these patients, the Bedside Schwartz calculation is preferred; a calculator is
available on the NKF website.
Performing Laboratory
West Virginia University Hospital, Inc.
Bluefield Pavilion Campus Berkeley Medical Center Barnesville Hospital Braxton County Memorial Camden Clark Medical Center Camden Clark Medical Center Fairmont Medical Center Garrett Regional Medical Center Harrison Community Hospital Jackson General Hospital Jefferson Medical Center Princeton Community Hospital Potomac Valley Hospital Reynolds Memorial Hospital Summersville Regional Medical Center St. Joseph’s Hospital United Hospital Center Uniontown Hospital Wetzel County Hospital Wheeling Hospital
