[3][4] Carrol has investigated clinic deterioration of children, and looked to understand whether the use of a paediatric early warning score (PEWS) could be used to prevent admission to critical care.
[5] In particular, she proposed the use of VitalPAC, an electronic handheld device that healthcare professionals can use to document vital signs and automatically calculate PEWS.
Patients with a higher PEWS score require more urgent medical attention, and alert messages are sent to senior nurses and doctors.
[7][8] In 2020 Carrol started to work with Imperial College London on the development of rapid diagnostic tests for severe illnesses through the use of gene signatures.
[9] Such tests will study the genetic make-up of patient blood samples, and compare them to a comprehensive library of the gene signatures of particular diseases.