Patient Circuits/ Infusion giving pathway
Resistance is any impediment to fluid flow. The greater the resistance in the IV circuit higher pressure is required to obtain the prescribed flow. The internal diameter and kinking potential of connecting tubing, cannula, needles, and patient vessel’s (phlebitis) all cause additive resistance to infusion flow. This along with filters, sticky solutions and syringe/cassette stiction can accumulate to the extent that infusion pumps are required to accurately deliver prescribed drugs to patients. These pumps must be capable of delivering infusions at pressures of between 100 and 750mmHg ( 2 to 15psi) A small car’s tyre pressure is 26 psi!
Post time: Jan-19-2024