Correct patient data input (Category, Gender, Date of birth, Height and Weight)
Correct injectate volume input and application
Injection through distal lumen preferably (other lumen also possible)
Injectate sensor housing mounting in 90 degree angle
No additional extensions or stop-cocks between injectate sensor housing and CVC lumen
Strictly avoid infusion of any drugs (especially vasoactive or inotropic) at the injection lumen
Avoid infusion of parenteral nutrition (high caloric or fatty solutions) or blood through the injectate sensor housing