Nephrolyx GFRx Calculator

This calculator is for scientific purposes only. It is not intended to be used for clinical decision making.

For clinical and IVD solutions please contact us.

To clear the example data click here.

Date of measurement: Name or Identifier (optional):

Sex: Female Male

Age:

By date

By month and year

In years

Date of birth:

Month and year of birth:

Number of years:

Body weight (in kg): Body height (in cm): Amount of Iohexol:

By contrast volume (mL)

By syringe weight (mg)

By iohexol weight (mg)

Administered volume of contrast agent fluid (in mL):

Weight of the syringe before injection (in mg): Weight of the syringe after injection (in mg):

Administered amount of Iohexol (in mg):

Iohexol concentration:

Measured creatinine (in mg/dL, optional): Body Surface Area normalization: Time of injection:

Measured iohexol (1 to 12 measurements):

#	Time (hh:mm):	Time (min):	Measurement Iohexol (µg/ml):
1
2
3

Email to receive calculation results:

Consent:

I confirm that I consent to the processing of my personal data by Nephrolyx GmbH for the purpose of using the GFR calculator, providing customer support and outreach. I understand that my data will be used to contact me regarding support inquiries and marketing communications. I am aware that I can withdraw my consent at any time by contacting contact@nephrolyx.com and that further information on the processing of my data can be found in the article 13 and 14 of the European data protection act.

I agree

I affirm that I am authorized to provide the input data for processing and scientific use for instance by having gathered consent. I understand that the result of this calculation is for scientific purposes only and must not be used for making diagnostic or therapeutic decisions. I have taken the necessary steps to protect the privacy rights of the source of the data, for instance by anonymizing the data before submission. (consent v2024-07-19)

I confirm