Galen eCalcs - Calculator: Bariatric Surgery

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BARIATRIC 2019.png


Calculates BMI, ideal weight, and weight loss goals related to bariatric surgery and a BMI of 25 or lower.

Calculator Search/Filter Keywords

At the calculator level, eCalcs comes delivered with default keywords that can be leveraged in the "Search/Filter" field to enable Specialty or System driven calculator searching. The following calculator keywords are delivered by default for the Bariatric Surgery calculator:


  • Gastroenterology
  • Surgery


  • Digestive

Calculator Configuration Options

Preference Name Valid Range Description
Publishing Checked / Unchecked When checked, the calculator will display for users on the front end.
When unchecked, the calculator WILL NOT display for users on the front end.
Orderable Item Override (BLANK) / G-BARSUR “(BLANK)” indicates that the global configuration options for Orderable Item will be used.
“G-BARSUR” indicates that the calculator specific value will be used and can display the specific calculator name in the chart output.

Calculator Inputs

Input Mapping Type Description
Height Vitals Patient’s Height in Inches
Current Weight Vitals Patient’s Current Weight
Date of Surgery Manual Input Patient’s Date of Surgery
Pre-Op Weight Manual Input Patient’s Pre-Op Weight

Calculator Outputs

Output Mapping Type Description
BMI Result Patient’s BMI
Ideal Weight Result Patient's ideal weight (BMI of 25) based on the patient's height
Extra Weight Result Difference between patient's weight and ideal weight
50% Weight Loss Goal Result Goal weight if patient loses 50% of extra weight
75% Weight Loss Goal Result Goal weight if patient loses 75% of extra weight
Weight Loss Result Weight lost since surgery
% Extra Weight Lost Result Percentage of extra weight lost since surgery
% Total Weight Lost Result Percentage of total weight lost since surgery