Roche Platform Transition

This page compares reference ranges between the Roche and Beckman platforms for the selected category of tests. For a description of the transition from the Beckman to Roche automated chemistry platform, please see the Chemistry and Immunoassay Beckman to Roche Transition Guideline.

All BMP Liver Kidney Lipids Endocrine Tumor Marker Cardiac Misc Drugs Heme

Method Comparison

The comparison table contains the following columns:

  • Trendable?: Indicates whether both methods use the same component code and results are trendable in Epic.
  • Bias: The average absolute difference between Roche and Beckman results. A positive value means Roche results are higher on average.
  • Percent Bias: Blue shading and bars extending left indicate negative bias (Beckman higher on average); orange shading and bars extending right indicate positive bias (Roche higher on average). Longer bars indicate greater magnitude.
  • Slope: The slope of the linear regression of Roche onto Beckman, representing proportional bias between the methods. “Not comparable” indicates that the methods were too poorly correlated for direct patient-result comparison.
  • R2 (Coefficient of Determination): How closely the regression fits the paired results.

These data can help when comparing results across platforms, but should not be used to convert a result directly from one method to the other.

Test Name Beckman Roche Trendable? Bias Percent Bias Slope Coefficient of Determination (R2)
Anion Gap IGAP IGAP ✅ 2.90 units 22.80% 1.01 0.94
Calcium CA CA ✅ -0.409 mg/dL -5.02% 1.167 0.9705
Carbon Dioxide, Total CO2 CO2 ✅ -0.822 mEq/L -5.01% 1.038 0.9022
Chloride CL CL ✅ -2.57 mEq/L -2.47% 1.126 0.9869
Creatinine CRE CRE ✅ -0.0376 mg/dL -0.73% 0.97 0.9957
Glucose GLU GLU ✅ -1.12 mg/dL -0.99% 0.987 0.9973
Potassium K K ✅ -0.064 mEq/L -1.53% 1.118 0.9897
Potassium, Random Urine UKR UKR ✅ 11.302 mEq/L 26.28% 1.693 0.8366
Sodium NA NA ✅ -2.82 mEq/L -1.98% 1.089 0.9481
Urea Nitrogen BUN BUN ✅ -2.567 mg/dL -8.02% 0.943 0.9983

Reference Ranges

Name
Beckman
Roche
Anion Gap
Name: Anion Gap
Mnemonic: IGAP
Units: not defined
Method Code: default
Female Male
AgeRange AgeRange
0- 7-15 0- 7-15
Effective date: 09/14/2026
Name: Anion Gap
Mnemonic: IGAP
Units: not defined
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 7-15 0- 7-15
Effective date: 02/20/2026
Calcium
Name: Calcium
Mnemonic: CA
Units: mg/dL
Method Code: default
Female Male
AgeRange AgeRange
0- 8.8-10.2 0- 8.8-10.2
Effective date: 09/14/2026
Name: Calcium
Mnemonic: CA
Units: mg/dL
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 8.8-10.2 0- 8.8-10.2
Effective date: 02/19/2026
Carbon Dioxide, Total
Name: Carbon Dioxide, Total
Mnemonic: CO2
Units: mEq/L
Method Code: default
Female Male
AgeRange AgeRange
0- 22-29 0- 22-29
Effective date: 09/14/2026
Name: Carbon Dioxide, Total
Mnemonic: CO2
Units: mEq/L
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 22-29 0- 22-29
Effective date: 02/20/2026
Chloride
Name: Chloride
Mnemonic: CL
Units: mEq/L
Method Code: default
Female Male
AgeRange AgeRange
0- 98-107 0- 98-107
Effective date: 09/14/2026
Name: Chloride
Mnemonic: CL
Units: mEq/L
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 98-107 0- 98-107
Effective date: 02/19/2026
Creatinine
Name: Creatinine
Mnemonic: CRE
Units: mg/dL
Method Code: default
Female Male
AgeRange AgeRange
0- 0.50-1.00 0- 0.70-1.20
Effective date: 09/14/2026
Name: Creatinine
Mnemonic: CRE
Units: mg/dL
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 0.50-1.00 0- 0.70-1.20
Effective date: 02/20/2026
Glucose
Name: Glucose
Mnemonic: GLU
Units: mg/dL
Method Code: default
Female Male
AgeRange AgeRange
0-29d 62-125 0-29d 62-125
1m- 62-125 1m- 62-125
Effective date: 09/14/2026
Name: Glucose
Mnemonic: GLU
Units: mg/dL
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 62-125 0- 62-125
Effective date: 02/20/2026
Potassium
Name: Potassium
Mnemonic: K
Units: mEq/L
Method Code: default
Female Male
AgeRange AgeRange
0- 3.5-5.1 0- 3.5-5.1
Effective date: 09/14/2026
Name: Potassium
Mnemonic: K
Units: mEq/L
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 3.5-5.1 0- 3.5-5.1
Effective date: 02/10/2026
Potassium, Random Urine
Name: Potassium, Random Urine
Mnemonic: UKR
Units: mEq/L
Method Code: default Effective date: 09/14/2026
Name: Potassium, Random Urine
Mnemonic: UKR
Units: mEq/L
Method Code: default Effective date: 09/14/2026
Sodium
Name: Sodium
Mnemonic: NA
Units: mEq/L
Method Code: default
Female Male
AgeRange AgeRange
0- 136-145 0- 136-145
Effective date: 09/14/2026
Name: Sodium
Mnemonic: NA
Units: mEq/L
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 136-145 0- 136-145
Effective date: 02/10/2026
Urea Nitrogen
Name: Urea Nitrogen
Mnemonic: BUN
Units: mg/dL
Method Code: default
Female Male
AgeRange AgeRange
0- 6-20 0- 6-20
Effective date: 09/14/2026
Name: Urea Nitrogen
Mnemonic: BUN
Units: mg/dL
Method Code: EVPUR1
Female Male
AgeRange AgeRange
0- 6-20 0- 6-20
Effective date: 02/20/2026