BD Alaris - Trumpet and Start-Up Curves

General Information
BD Alaris
TM
System with Guardrails
TM
Suite MX User Manual 195
NOTE:
The minimum Volume To Be Infused (VTBI) for both pump and syringe modules (applicable to all syringe
sizes) is 0.1mLs. This applies to Continuous Infusions, bolus dose, Intermittent Infusions, and IV Fluids.
The set length and temperature of the administration set can affect occlusion time to alarm. Increases in
temperature and increases in length may increase time to alarm.
Trumpet and Start-Up Curves
In this instrument, as with all infusion systems, the action of the pumping mechanism and variations in
individual administration sets cause short-term fluctuations in rate accuracy. The following graphs show
typical performance of the system, as follows:
• Accuracy during various time periods over which fluid delive
ry is measured (trumpet curve
s).
• Delay in onset of fluid flow when infusion commence
s (start-up curves).
Trumpet curves are named for their characteristic shape. They display d
iscrete accuracy data averaged over
particular time periods or "observation windows," not continuous data versus operating time.
Over long observation windows, short-term fluctuations have little effect on a
ccuracy, as represented by
the flat part of the curve. As the observation window is reduced, short-term fluctuations have greater
effect, as represented by the "mouth" of the trumpet. Knowledge of system accuracy over various
observation windows might be of interest when certain drugs are being administered.
Because the clinical impact of short-term fluctuations o
n rate accuracy depends on the half-life of the drug
being infused and on the degree of intravascular integration, the clinical effect c
annot be determined from
the trumpet curves alone. Knowledge of the start-up characteristics should also be considered.
Volume to be
Infused
Programming
Increments:
Weight:
4.5 lbs
Bolus Accuracy:
Range (mL) Increments (mL)
0.01 - 9.99 0.01
10 - 60 0.1
Syringe
Disposable
Set
Bolus
(Set Value)
Calculated
Percentage
Deviation from
Set Value
Maximum
Positive
Deviation from
Set Value
Maximum
Negative
Deviation from
Set Value
BD 60 ml
309653
30914 Maximum
60 mL
2.68 % 0.110 mL - 1.022 mL
BD 5 ml
302135
30914 Minimum
0.1 mL
8.2 % 0.069 mL - 0.050 mL
BD 60 ml
309653
10014914 Maximum
60 mL
2.5 % 0.020 mL - 3.9278 mL
BD 5 ml
302135
10014914 Minimum
0.1 mL
9.4 % 0.063 mL -0.088 mL