Cr Clearance Calculator

Step-by-Step Guide to Using the Creatinine Clearance Calculator

This guide provides instructions to effectively use the Creatinine Clearance Calculator. Follow each step carefully to ensure accurate results.

Inputting Data

1. Age Entry:

   Locate the input field labeled Age (years). Enter your age in years. Please ensure that the age is between 18 and 120 years as values outside this range are not accepted.

2. Weight Entry:

   Proceed to the field labeled Weight (kg). Input your weight in kilograms. The accepted range is between 20 and 300 kg.

3. Serum Creatinine Entry:

   Find the field labeled Serum Creatinine (mg/dL). Enter your serum creatinine level. Ensure it is within 0.1 to 20 mg/dL, inputting values in steps of 0.1 mg/dL.

4. Gender Selection:

   Use the select field labeled Gender to choose your gender. Options available are ‘Male’ and ‘Female’. Selection is required.

Understanding the Results

1. Creatinine Clearance (Cockcroft-Gault):

   Once the data input is complete, the calculator provides the Creatinine Clearance based on the Cockcroft-Gault formula. The result is displayed with one decimal point accuracy and expressed in mL/min.

2. Normalized Creatinine Clearance:

   This value represents the creatinine clearance adjusted for a standard body surface area of 1.73m². To calculate, ensure the height is known, as it is used in the formula: crClearance * (1.73 / ((0.007184 * pow(weight, 0.425) * pow(height, 0.725)))).

3. Renal Function Stage:

   The calculator determines the renal function stage based on the creatinine clearance result. Stages range from ‘Normal or High’ to ‘Kidney Failure’. This classification helps in understanding the level of kidney function.

Follow these steps thoroughly to use the Creatinine Clearance Calculator accurately. This will ensure you receive meaningful information about renal function effectively.