Evans formula

Evans formula is a mathematical formula used in the field of medicine and healthcare, specifically in the area of intravenous therapy. It is named after the scientist Dr. Howard Evans, who first proposed the formula. The Evans formula is used to calculate the volume of intravenous fluids required by a patient over a 24-hour period.

Overview[edit | edit source]

The Evans formula is based on the patient's weight and is calculated as follows:

For the first 10 kg of body weight, 100 ml/kg is given.
For the next 10 kg of body weight, 50 ml/kg is given.
For each additional kg of body weight over 20 kg, 20 ml/kg is given.

This formula is used to ensure that the patient receives the correct volume of intravenous fluids, which is crucial for maintaining the patient's hydration status and ensuring proper electrolyte balance.

Application[edit | edit source]

The Evans formula is widely used in hospitals and other healthcare settings. It is particularly useful in the management of patients who are unable to drink fluids, such as those who are unconscious or who have certain medical conditions that affect their ability to swallow.

Limitations[edit | edit source]

While the Evans formula is a useful tool, it is not without its limitations. It does not take into account the patient's individual needs or the specific nature of their illness. Therefore, it should be used as a guide rather than a definitive rule, and the patient's condition should be closely monitored to ensure that they are receiving the appropriate amount of fluids.

References[edit | edit source]

Evans formula Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.