Glomerular Filtration Rate

The special qualifiers GFR (actual body weight) and GFR (ideal body weight) calculate the Glomerular Filtration Rate to 1 decimal place based on the Cockcroft and Gault formula.

For female patients:
((140 - AGE) X WEIGHT) / SE CREATININE
For male patients:
(((140 - AGE) X WEIGHT) / SE CREATININE) x 1.23
Where:
  • AGE is in completed years
  • WEIGHT is in kg
  • SE CREATININE is in umol/l
For GFR (actual body weight), the actual body weight is used. For GFR (ideal body weight) the maximum adult lean weight is used if this is lower than the actual body weight. This is calculated as:
(HEIGHT x HEIGHT) x 25

Where Height is in m

Communicare requires the qualifiers to use the following units:
  • Weight in kg
  • Height in cm
  • Se Creatinine in either umol/L or mmol/L
Add the GFR (actual body weight) qualifier and the GFR (ideal body weight) qualifier to separate clinical items:
  • Add the GFR (actual body weight) qualifier with Weight and Creatinine.
  • Add the GFR (ideal body weight) qualifier with Weight, Height and Creatinine.
Tip: If Weight, Height or Creatinine are not provided at the same time, the most recent measure of weight, height or creatinine are used.