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A small but powerful invention could make life in the NICU easier for the tiniest patients.

Newborns must have their vitals checked frequently, and one of the most critical measures of newborn health is electrolyte levels. Right now, the only way to monitor electrolytes is to draw their blood multiple times a day. This can be painful and frightening for babies, and challenging to perform for medical staff, who can have trouble drawing blood from tiny, underdeveloped blood vessels.

Now, researchers at the Georgia Institute of Technology have developed a pacifier designed to monitor a baby’s electrolyte levels in real time, potentially eliminating the need for repeated invasive blood draws.

Hong Yeo, associate professor and Harris Saunders Jr. Endowed Professor in the George W. Woodruff School of Mechanical Engineering, came up with the pacifier idea at a pediatric technology conference. Doctors described daily challenges they face in caring for sick newborns, and the lack of noninvasive monitoring systems.

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