What is measured before and after a filter to assess its performance?

Measuring pressure before and after a filter is essential to assess its performance. This practice allows technicians to determine the pressure drop across the filter, which provides valuable information about the filter's condition and efficiency. A significant drop in pressure can indicate that the filter is becoming clogged, which may reduce its effectiveness in removing contaminants from the dialysis fluid.

Maintaining optimal pressure levels is crucial for ensuring that the dialysis process runs smoothly and effectively. If the pressure before the filter is significantly higher than after the filter, it can signal that the filter is either working excessively hard or that it may need to be replaced. This measurement is key in preventing complications and ensuring patient safety during hemodialysis treatment.