Usability of volumetric infusion pumps in pediatric intensive care

This is a cross-sectional study of exploratory descriptive quantitative approach. A task was carried out in a controlled environment using infusion pump with 72 nursing staff members from August to September 2018. The Methodological Guideline for Medical Care Equipment Assessment Studies and the quality model proposed by NBR ISO/IEC 9126-1 were followed. Descriptive statistical analysis was used applying Fisher’s exact test, binomial test and Mann-Whitney test.

Results:

91.7% of tasks were completed. The infusion pump-2 model was associated (p < 0.001) with operationalization, tasks accomplished with non-conformities, use of a manual calculator (measure effectiveness) and task accomplishment time (measure efficiency).

Conclusion:

Efficacy and efficiency measures can evidence a better context of usability of IPs and identify interaction failures with the nursing staff to be improved in care practice.

DESCRIPTORS:
Infusion Pumps; Intensive Care Units, Pediatric; Ergonomics; Pediatric Nursing; Quality of Health Care; Technology Assessment, Biomedical

Step by step - Infusion pump-1		Conformity
Step by step - Infusion pump-1		Yes	No
Step 1	Press the key .
Step 2	Wait for the self-test routine.
Step 3	Initial screen: program infusion - press the "confirm" key.
Step 4	Press "up" or "down" key and select the type of schedule for use in: NEO patient.
Step 5	Press the "confirm" key.
Step 6	Program the infusion volume=528.3.
Step 7	Press the "confirm" key.
Step 8	Infusion flow - press the "confirm" key.
Step 9	Schedule infusion time=12 hours.
Step 10	Press the "confirm" key.
Task accomplishment time=

Step by step - Infusion pump-2		Conformity
Step by step - Infusion pump-2		Yes	No
Step 1	Press the "on/off" key.
Step 2	Wait for the self-test routine.
Step 3	Press the F key and sequentially key 2 (program the total volume to be infused).
Step 4	Program the infusion volume=528.3.
Step 5	Press the F key (confirm).
Step 6	Press the F key and sequentially the key 4 (P=volume programming drops/minutes).
Step 7	Schedule infusion time=12 hours.
Step 8	Press the F key (confirm).
Task accomplishment time=

Operationalization	Conformity	Non-conformity	p^‡ ‡ Binomial Test.
Operationalization	n(%)	n(%)	p^‡ ‡ Binomial Test.
*^ * PICU - Pediatric Intensive Care Unit; PICU-A/^† † IP - Infusion pump; IP-1**
Press the key	42(100)	0(0)	< 0.001
Wait for the self-test routine	26(61.9)	16(38.1)	0.164
Home screen: infusion program: press the confirm key	42(100)	0(0)	< 0.001
Press key up or down and select the type of schedule for use in: NEO patient	40(95.2)	2(4.8)	< 0.001
Press the confirm key	42(100)	0(0)	< 0.001
Program the infusion volume=528.3	39(92.9)	3(7.1)	< 0.001
Press the confirm key	41(97.6)	1(2.4)	< 0.001
Infusion flow - press the confirm key	40(95.2)	2(4.8)	< 0.001
Schedule infusion time=12 hours	40(95.2)	2(4.8)	< 0.001
Press the confirm key	41(97.6)	1(2.4)	< 0.001
PICU-B/*IP-2
Press the on/off key	30(100)	0(0)	< 0.001
Wait for the self-test routine	30(100)	0(0)	< 0.001
Press the F key and sequentially key 2 (program the total volume to be infused)	30(100)	0(0)	< 0.001
Program the infusion volume=528.3	30(100)	0(0)	< 0.001
Press the F key (confirm)	10(33.3)	20(66.7)	0.099
Press the F key and sequentially key 4 (volume programming drops/minutes)	10(33.3)	20(66.7)	0.099
Schedule infusion time=12 hours	9(30.0)	21(70.0)	0.043
Press the F key (confirm)	10(33.3)	20(66.7)	0.099

Variable	Infusion pump		P value
	1	2
	n(%)	n(%)
Task accomplished			0.237
Yes	40(95.2)	26(86.7)
No	2(4.8)	4(13.3)
*Task accomplished^ * Considering only the tasks accomplished;**			<0.001^† † Fisher's exact test.
Conformity	22(55.0)	9(34.6)
One non-conformity	15(37.5)	0(0)
Two non-conformities	2(5.0)	0(0)
Three non-conformities	1(2.5)	0(0)
Four non-conformities	0(0)	17(65.4)
Use of a manual calculator			<0.001^† † Fisher's exact test.
Yes	0(0)	17(56.7)
No	42(100)	13(43.3)

Universidade de São Paulo, Escola de Enfermagem Av. Dr. Enéas de Carvalho Aguiar, 419 , 05403-000 São Paulo - SP/ Brasil, Tel./Fax: (55 11) 3061-7553, - São Paulo - SP - Brazil
E-mail: reeusp@usp.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] Corresponding author: Elizandra Cassia da Silva Oliveira Estrada do Arraial, 2405, Tamarineira CEP 52051-380 - Recife, PE, Brazil elizandra.cassia@bol.com.br