Social workers use practice experience to inform scientific inquiry and use research evidence to inform practice. As with the social work practitioner, social work educators also experience ethically-based challenges in relation to EBP. NASW and CSWE clearly promote an evidence-based focus in both social work practice and education.
Some drug infusion pumps are external and can be used in the hospital and at home. Others are surgically implanted into the patient. Drug infusion pumps can be used to deliver a number of drugs and fluids. Some of the more common uses include: 1  providing high-risk patients with critical fluids and nutrients. 2  delivering antibiotics (the majority of external drug infusion pumps administer antibiotics). 3  delivering pain relieving drugs -- pumps administering these types of drugs are often called pain pumps or anesthetic infusion pumps.
An example of a non-positive pump is a centrifugal pump. This type of pump will not pump gases and therefore requires a primer. Ejector Pumps These types of pumps do not use either mechanical pistons or plungers to increase or decrease the pressure but use a fast moving jet of liquid or gas to do the same job. This jet is called a propellant. The ejector pump uses a venture effect within the throat of the pump. At the throat an area of low pressure is created by the fast moving propellant, any movement outside this area being at a higher pressure will flow into the pump. This fluid and the propellant are discharged at the outlet.