What are the three major problems of infusion pumps?

What are the three major problems of infusion pumps?

The FDA has summarized the three major reasons for infusion pump malfunctions as the following:

• Software Defects. Some pumps fail to activate pre-programmed alarms when problems occur, while others activate an alarm in the absence of a problem.
• User Interface Issues.
• Mechanical or Electrical Failures.

What are the factors that affect infusion rate?

Under such circumstances, many factors may influence the rate at which fluid can be infused, including diameter and length of cannula and administration tubing, pressure gradient between fluid and patient, fluid characteristics and venous anatomy.

What user errors can occur when using infusion pumps?

Examples of Reported Infusion Pump Problems

• Software problems.
• Alarm errors.
• Inadequate user interface design (“human factors” issues)
• Broken components.
• Battery failures.
• Fire, sparks, charring, or shocks.

What are the 4 factors that impact flow rate?

Fluid flow in pipes is affected by many different factors:

• The viscosity, density, and velocity of the fluid.
• Changes in the fluid temperature will change the viscosity & density of the fluid.
• The length, inner diameter, and in the case of turbulent flow, the internal roughness of the pipe.

What are the disadvantages of infusion pumps?

Disadvantages:

• The pressure produced can cause extravasation/infiltration of intravenous fluids.
• The alarm will sound when the pressure reaches high levels eg 2000mm/Hg.
• The occlusion alarm is proportional to flow rate, ie if a low flow rate is set, the alarm may take up to an hour to sound.

What is occlusion in infusion pump?

An infusion pump is an electronic device used to control the administration of intravenous fluids to deliver measured amounts at careful and regulated rates. Occlusion is the interruption or ineffective therapy of infusion due to a blockage, momentary closure or obstruction of the passageway or blood vessel.

Which factors have an effect on downstream infusion pressure levels?

Any blockage/occlusion of the giving pathway causes the downstream line pressure to increase to the pumps occlusion alarm/ pressure limit, which causes the tubing to expand/balloon. Clearing the occlusion e.g. opening the tap, roller clamp, kinked tubing will infuse a bolus into the patient.

What can affect IV gravity flow rates?

Instruct patient to keep hand/arm below heart level; an elevated hand/arm will slow or stop an infusion running by gravity. The smaller the needle or cannula, the slower the fluid will flow.

What factors affect flow?

Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility.

What causes a decrease in flow rate?

Clogged Pipes or Fixtures – If only one or a few fixtures in the house are experiencing problems, there may be a plumbing-related issue: clogged pipes. Mineral buildup in pipes, showerheads, or inside your taps can restrict water flow, resulting in lower flow rates.

What are two primary reasons for using an IV infusion pump?

First, it assists in maintaining IV patency and second, it aids in overcoming any potential resistance. Resistance may be in the form of an indwelling problem in the patient (i.e., excessive vasoconstriction) or due to a small diameter of infusion tubing.

How do you fix IV occlusion?

What Should I Do If My Pump Reads “Down Occlusion”

1. Check clamp on tubing and unclamp if clamped.
2. Check tubing for any kinks or if patient is lying on tubing causing it to occlude.
3. Make sure tubing is placed in pump correctly.
4. Try to restart by pressing Pause/Yes to Resume/Run to Start.

What’s the average accuracy of an infusion pump?

Infusion pump user manuals typically report flow accuracy of +/-5%, but this is an average under controlled lab conditions (Weinger, Kline, 2016). Actual pump performance in real-world conditions typically is less understood, despite the dramatic effect changing conditions can have on pump output and patient response.

How is flow continuity measured in an infusion pump?

Flow continuity measures the variance from that average during the 60-minute window. In LVP technical documentation, both accuracy and continuity are communicated using trumpet curves, as defined in the international standard for infusion devices: IEC 60601-2-24 (IEC, 2012).

Why is it important to know LVP flow accuracy?

Fluid Dynamics: The Importance of Accuracy and Continuity Knowledge about true LVP flow accuracy and continuity is vitally important for quality patient care. LVP flow accuracy is how closely the average pump flow rate correlates with the programmed rate. Typically manufacturer values are based on an average over a 60-minute interval.

What are the side effects of an unrestricted infusion pump?

Quick delivery may lead clinicians to misjudge the drug’s full effect, leading to over-medication. Unrestricted pump flow poses another risk. Since oxytocin’s duration of action can last up to three hours, this can lead to prolonged, unnecessary side effects, such as uterine rupture and fetal deceleration.