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Start-up delay in syringe infusion pumps with different rates and priming techniques of intravenoust sets
Natalie Marino Vieira1, Maria Paula de Oliveira Pires1,2, Gabriela Beltran Crespo1
1Universidade Federal de São Paulo (Unifesp), Escola Paulista de Enfermagem, Departamento de Enfermagem Pediátrica. São Paulo, São Paulo, Brasil.
Objective:
To investigate infusion pumps start-up delay according to different brands of infusion pumps, flow rates and intravenous sets priming techniques.
Method:
The experimental study simulated clinical practice under controlled conditions, using a 50 mL syringe with NaCl 0.9% solution, two syringe infusion pumps (A and B), six rates (0.3, 0.5, 1.0, 5, 10 and 20 mL/h), two purging techniques (manually or infusion pump's electronic bolus). Data were analyzed according to mean, standard deviation, Student's t and ANOVA tests (p<0.05).
Results:
The start-up delay was greater in low rates regardless the priming technique. The electronic bolus increased the infusion pump A accuracy at 0.3mL/h (p=0.010), 0.5 mL/h (p=0.002) and 1.0mL/h (p=0.004). Pump's accuracy in all studied rates and manual IV sets filling was similar.
Conclusion:
In low infusion rates the start-up delay was greater despite the infusion pump brand and electronic bolus improved pumps accuracy.
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