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# Contrast Nephropathy Calculator Online

The Contrast Nephropathy Calculator is a tool designed to assess the risk of contrast-induced nephropathy (CIN) in patients undergoing procedures involving contrast media. It calculates the Mehran Risk Score, which helps in estimating the likelihood of developing CIN based on specific parameters.

### Formula of Contrast Nephropathy Calculator

The Mehran Risk Score is computed using the following formula:

Mehran Risk Score = [Serum Creatinine (mg/dL) / Baseline Creatinine (mg/dL)] + 0.3 * [Age (years) - 75] + 0.1 * [Contrast Volume (mL) / Baseline GFR (mL/min/1.73 m²)] + 0.06 * (Serum Urea Nitrogen (mg/dL) / Baseline GFR (mL/min/1.73 m²))

Where:

• Serum Creatinine: Post-procedure serum creatinine level.
• Baseline Creatinine: Baseline (pre-procedure) serum creatinine level.
• Age: Age of the patient in years.
• Contrast Volume: The volume of contrast media used during the procedure in milliliters (mL).
• Baseline GFR: Baseline (pre-procedure) glomerular filtration rate in mL/min/1.73 m².
• Serum Urea Nitrogen: Post-procedure serum urea nitrogen level.

Upon calculating the Mehran Risk Score, the estimated risk of CIN can be interpreted as:

• Low Risk: Score < 5
• Moderate Risk: Score between 5 to 10
• High Risk: Score > 10

### General Terms Table or Additional Information

Here's a table listing general terms or additional information that might assist users in understanding the concepts related to contrast-induced nephropathy and its risk assessment:

### Example of Contrast Nephropathy Calculator

Let's consider a scenario where a patient, aged 70, undergoes a procedure utilizing 100 mL of contrast media. Their post-procedure serum creatinine is 1.2 mg/dL, baseline creatinine is 1.0 mg/dL, baseline GFR is 80 mL/min/1.73 m², and serum urea nitrogen is 20 mg/dL. By applying these values to the formula, the Mehran Risk Score can be calculated to estimate the risk level.

### Most Common FAQs

2. How Can I Minimize the Risk of Contrast Nephropathy?

To reduce the risk, stay hydrated, discuss alternatives with your healthcare provider, and ensure proper kidney function evaluation before procedures.