Which medical product innovation was initially developed for NASA astronauts before becoming widely adopted in hospitals for patient monitoring?

The medical industry has seen numerous groundbreaking products that have revolutionized patient care and treatment outcomes. From diagnostic tools to innovative therapies, product development in medicine has saved countless lives and improved quality of life for millions. Test your knowledge about these game-changing medical innovations and their impact on modern healthcare.

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Pulse oximeter (non-invasive blood oxygen measurement)
Digital thermometer (infrared temperature sensing)
Automated external defibrillator (AED)
Continuous glucose monitoring system (CGM)