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Table 3 Summary of usability tasks performed by product category

From: Avoid equipment graveyards: rigorous process to improve identification and procurement of effective, affordable, and usable newborn devices in low-resource hospital settings

Product category

Tasks

Syringe Pump

• Begin an infusion of 10 mL of fluid at a rate of 2 mL/hr

• Explain what the occlusion alarm means and resume the infusion

Bilirubinometer

• Calibrate the reader

• Measure and report the bilirubin level in the provided blood sample

Phototherapy

• Set up and use the device in high intensity mode

Glucometer

• Measure and report the glucose level in the provided blood sample

Haemoglobinometer

• Measure and report the haemoglobin level in the provided blood sample

CPAP

• Set up the CPAP with all the provided tubing so it has a pressure of 6 cm of water

• Turn on the CPAP and adjust the total flow rate to between 4 and 6 LPM, with an oxygen percentage from 30 to 50%

• Assemble the nasal prong interface and connect it to the baby and the CPAP

Flow Splitter

• Set up and use the device to deliver air to three babies, each requiring a different flow rate

Oxygen Concentrator

• Set up and use the device to treat one infant with a flow of 2.0 LPM

• Remove and wash any required filters

Pulse Oximeter (Continuous)

• Measure and report the simulated heart rate and SpO2 level

• Set alarm limits of 50–150 for heart rate and 88–100 for Sp02

Suction Pump

• Set up the device, so it is ready to be used with a patient

• Turn on the device and transfer fluid into the suction container

Radiant Warmer

• Prewarm the device for the required amount of time

• Place the baby in the bed. Set the device so that it will begin to adjust the baby’s temperature to 37 °C automatically

• Read and report the baby’s current temperature

• Explain what the power failure alarm means and fix the cause of the alarm

Temperature Monitor (Continuous)

• Set up the device

• Secure monitor on patient

• Identify the source and report the cause of the high temperature alarm

Conductive Warmer

• Set up the device for thermal treatment at 36.5 °C

• Provide thermal treatment to baby

• Report the cause of the power failure alarm

Respiratory Rate/Apnoea Monitor

• Set up and use the device to monitor on infant

• Explain what the apnoea alarm means and fix the cause of the alarm

  1. Abbreviations: mL millilitres, hr hour, cm centimetres, LPM litres per minute, CPAP continuous positive airway pressure, SpO2 oxygen saturation