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Replacing GFR with CrCl for cockcroft gault equation

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This commit is contained in:
saksham vitwekar
2026-03-31 16:00:30 +05:30
parent 22df32354c
commit 08e1c1b3c9
7 changed files with 29 additions and 37 deletions
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8
docs/miscellaneous/cockcroft-gault-eq.md
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@@ -1,6 +1,6 @@
# CockCroft Gault Equation
### CockCroft Gault Equation is an equation which is used to calculate the eGFR (Estimated Glomerular Filtration Rate) of a patient
### CockCroft Gault Equation is an equation which is used to calculate the CrCl (Creatinine Clearance) of a patient
### Unit:- mL/min
@@ -14,9 +14,9 @@
### Formula
#### It uses the following formula to calculate the GFR
#### It uses the following formula to calculate the CrCl
$$
GFR = \frac{(140 - Age)}{(72 \times S. Creatinine)} \times 0.85 \text{(if patient is female)}
CrCl = \frac{(140 - Age)}{(72 \times S. Creatinine)} \times 0.85 \text{(if patient is female)}
$$
## Interpretation
@@ -31,4 +31,4 @@ $$
| **less than 15 mL/min** | **CKD Stage 5 / ESRD** | **Renal Function is severely reduced** |
### Notice:-
#### This equation of calculating eGFR is not as accurate, other equations like MDRD and CKD-EPI are recommended. Equation is not reliable in the cases of AKI (Acute Kidney Injury). Consultation with a Nephrologist is always recommended. No diagnosis should be made just on the basis of a medical calculator. Other clinical clues are to be taken into account (Urinalysis, UACR(Urine Albumin to Creatinine Ratio) etc.)
#### This equation of calculating Creatinine Clearance is not as accurate, other equations like MDRD and CKD-EPI are recommended. Equation is not reliable in the cases of AKI (Acute Kidney Injury). Consultation with a Nephrologist is always recommended. No diagnosis should be made just on the basis of a medical calculator. Other clinical clues are to be taken into account (Urinalysis, UACR(Urine Albumin to Creatinine Ratio) etc.)

12
src/app/(calculators)/calculate/[section]/[id]/page.tsx
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@@ -1,6 +1,14 @@
import { Metadata } from "next";
import RenderCalculator from "./renderCalc";
import { CalculatorRegistry } from "@/app/utils/calculators/registry";
export async function generateMetadata({params} : {params:Promise<{section:string, id:string}>}):Promise<Metadata>{
const calcData : {section:string, id:string} = await params;
const calculator = CalculatorRegistry[calcData.section].calculators.find(e => e.id === calcData.id);
return {
title:`${calculator?.name} calculator`,
description:`A ${calculator?.name} calculator to evaluate the patient as accurately as possible`
};
}
export default async function Calculator({params} : {params:Promise<{section:string, id:string}>}){
const calcData : {section:string, id:string} = await params;
return(

1
src/app/(calculators)/calculate/[section]/[id]/renderCalc.tsx
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@@ -5,6 +5,7 @@ import Input from "@/app/utils/Input";
import Result from "@/app/utils/Result";
import { CalculatorRegistry } from "@/app/utils/calculators/registry";
import { Interpretation } from "@/app/utils/calculators/types";
import { Metadata } from "next";
import { useState } from "react";
export default function RenderCalculator({section, id} : {section:string, id:string}){

4
src/app/utils/Result.tsx
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@@ -7,9 +7,9 @@ export default function Result({interpretation, calculated_value, unit} : {inter
if(level === "none" || level === "low"){
levelClass = "bg-success";
}else if(level === "moderate"){
levelClass = "bg-orange-600";
levelClass = "bg-orange-600 text-white";
}else if(level === "high" || level === "severe"){
levelClass = "bg-red-500";
levelClass = "bg-red-500 text-white";
}else{
levelClass = "bg-white";
}

24
src/app/utils/calculators/miscellaneous/cockcroft-gault-eq.ts
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@@ -55,44 +55,44 @@ function calc_func(values : Values):number{
? Math.floor(((140 - age) * weight)/(72 * creatinine))
: Math.floor((((140 - age) * weight)/(72 * creatinine)) * 0.85);
}
function interpret_func(gfr:number):Interpretation{
if(gfr >= 90){
function interpret_func(crcl:number):Interpretation{
if(crcl >= 90){
return {
level:"none",
message:"Glomerular Filtration Rate (GFR) is normal or on the higher side, To be correlated with other clinical clues",
message:"Creatinine Clearance (CrCl) is normal or on the higher side, To be correlated with other clinical clues",
diagnosis:"CKD Stage 1"
}
}else if(gfr < 90 && gfr >= 60){
}else if(crcl < 90 && crcl >= 60){
return {
level:"low",
message:"Glomerular Filtration Rate (GFR) is slightly reduced, To be correlated with other clinical clues",
message:"Creatinine Clearance (CrCl) is slightly reduced, To be correlated with other clinical clues",
diagnosis:"CKD Stage 2"
}
}else if(gfr < 60 && gfr >= 45){
}else if(crcl < 60 && crcl >= 45){
return{
level:"moderate",
message:"Glomerular Filtration Rate (GFR) is moderately reduced",
message:"Creatinine Clearance (CrCl) is moderately reduced",
advice:"Consult a Nephrologist",
diagnosis:"CKD Stage 3A"
}
}else if(gfr < 45 && gfr >= 30){
}else if(crcl < 45 && crcl >= 30){
return{
level:"high",
message:"Glomerular Filtration Rate (GFR) is significantly reduced",
message:"Creatinine Clearance (CrCl) is significantly reduced",
advice:"Consult a Nephrologist urgently",
diagnosis:"CKD Stage 3B"
}
}else if(gfr < 30 && gfr >= 15){
}else if(crcl < 30 && crcl >= 15){
return{
level:"high",
message:"Glomerular Filtration Rate (GFR) is largely reduced",
message:"Creatinine Clearance (CrCl) is largely reduced",
advice:"Consult a Nephrologist urgently",
diagnosis:"CKD Stage 4"
}
}else{
return{
level:"severe",
message:"Glomerular Filtration Rate (GFR) is severely reduced",
message:"Creatinine Clearance (CrCl) is severely reduced",
advice:"Consult a Nephrologist urgently to consider dialysis",
diagnosis:"CKD Stage 5 / ESRD (End Stage Renal Disease)"
}

15
src/app/utils/calculators/registry.js
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@@ -1,15 +0,0 @@
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CalculatorRegistry = void 0;
var cockcroft_gault_eq_1 = require("./miscellaneous/cockcroft-gault-eq");
exports.CalculatorRegistry = {
miscellaneous: {
id: "miscellaneous",
displayName: "Miscellaneous",
textColor: "#ccc",
svg: "",
calculators: [
cockcroft_gault_eq_1.cockcroftGault
]
}
};

2
src/app/utils/calculators/types.js
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@@ -1,2 +0,0 @@
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });