Una punción lumbar es una prueba médica que implica recoger una pequeña muestra de líquido cefalorraquídeo para analizarlo. Este líquido transparente e incoloro ayuda a proteger el cerebro y la médula espinal, o sistema nervioso central, amortiguando posibles golpes.
Los médicos usan esta muestra de líquido cefalorraquídeo para detectar signos de infección o de otras enfermedades.
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Reviewed by: Expertos en medicina de KidsHealth
Date Reviewed: Jan 12, 2022
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