Create a creatinine clearance (CrCl) calculator with Text Blaze

Hey Text Blaze Community :fire:

Using Text Blaze, you can perform calculations directly within your snippets to save time and reduce errors.

One cool example is using Text Blaze to create a creatinine clearance (CrCl) calculator, which helps you quickly perform calculations so that you can spend less time charting and more time with patients :stethoscope:

Also, it integrates in any EMR (even if you switch EMRs). Give it a try and let us know what you think!


Learn more here.

Check out the calculator below:

Serum Creatinine (mg/dL): {formtext: name=scr} {note}Norm: 0.7 - 1.3{endnote}

Age (years): {formtext: name=age}

{if: `weight units`="kgs"}Weight{note} (kg){endnote}: {formtext: name=weight}{formmenu: default=lbs; kgs; name=weight units}{note} Norm: 1 - 150 kgs{endnote}{endif}{if: `weight units`="lbs"}Weight{note} (lbs){endnote}: {formtext: name=weight}{formmenu: lbs; default=kgs; name=weight units}{note} Norm: 2 - 300 lbs{endnote}{endif}

{if: `height units`="cm"}Height{note} (cm){endnote}: {formtext: name=height}{formmenu: default=inches; cm; name=height units}{note} Norm: 152 - 213 cm{endnote}{endif}{if: `height units`="inches"}Height{note} (inches){endnote}: {formtext: name=height}{formmenu: default=inches; cm; name=height units}{note} Norm: 60 - 84 inches{endnote}{endif}

Sex: {formmenu: Male; Female; name=sex}

Original Cockcroft and Gault formula result: {=round(originalresult)} mL/min

Crockcroft and Gault formula using Ideal Body Weight: {=round(ibwresult)} mL/min

{if: bmi<18.5}Because BMI is under 18.5, it is recommended to use the unadjusted result.{elseif: bmi<25}Because BMI is between 18.5 and 25, it is recommended to use the Ideal Body Weight result.{elseif: BMI>25}Crockcroft and Gault formula using Adjusted Body Weight: {=round(adjustedresult)} mL/min

Because BMI >25, it is recommended to use the Adjusted Body Weight result.{endif}
{formtoggle: name=Show evidence and formulas}
Cockcroft-Gault formula for mL/min = (140 – age) × (weight in kg) × (0.85 if female) / (72 × SCR in mg/dL)

For Ideal Body Weight calculations, the following formula is used:
Males: 50+(2.3*(height in inches-60))
Females: 45.5+(2.3*(height in inches-60))

Adjusted bodyweight is calculated as Ideal Body Weight + 0.4 * (actual weight - ideal body weight)

BMI is calculated using 703*(weight in pounds/(height in inches^2)) for imperial measurements, and weight in kg/(height in meters^2) for metric.{endformtoggle}{note: preview=no}

Original research: Prediction of creatinine clearance from serum creatinine - PubMed, Impact of various body weights and serum creatinine concentrations on the bias and accuracy of the Cockcroft-Gault equation - PubMed

Transforming units:
{kg=weight/2.2046 if `weight units`="lbs" else weight}
{inches=height if `height units`="inches" else height/2.54}
{meters=height*0.0254 if `height units`="inches" else height*0.01}
Ideal body weight
Adjusted body weight
{if: sex="Male"}