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* Comprehensive Metabolic Panel with Estimated Glomerular Filtration Rate (GFR)

Mnemonic

COMPGFR

Synonym

COMP - COMP GFR

Includes

Albumin, Alkaline Phosphatase, ALT (GPT), AST (GOT), Total Bilirubin, BUN, Calcium, Chloride, Total CO2, Creatinine, Glucose, Potassium, Total Protein, Sodium, GFR

Guidelines

The GFR is used to assess kidney function and any evidence of chronic kidney disease. Estimated GFR is not reported for patients under 18 years of age.

Specimen Collection Requirements

Patient Preparation

Recommended 8-14 hours fasting sample for glucose.

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (PST) top tube

Supply Item Number - 101235 or 101192

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Preferably, separate serum or plasma from cells within one hour of collection.

Preferred Volume

1.0 mL Serum/Plasma

Minimum Volume

0.5 mL Serum/Plasma (1.2 mL minimum whole blood draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 3 days; Frozen (≤ -20°C): 7 days

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Colorimetry, Ion Selective Electrode, Enzymatic

Reference Values

Reference Values

GFR Reference Range (mL/min/1.73m2)

Description

Stage of Chronic Kidney Disease (CKD)

≥60

Normal

None

Kidney damage with normal GFR

1

Kidney damage with mildly decreased GFR

2

30-59

Moderate CKD

3

15-29

Severe CKD

4

0-14

Kidney Failure

5

Critical Values

See specific tests.

Comments

GFR is calculated using the IDMS-traceable MDRD study equation from serum or plasma creatinine, age, gender and race.
Refer to specific tests for interference.

CPT Codes

80053

Last Updated: Thursday, March 14, 2019 12:50:31 PM


Client Services: 503-413-1234