Examen de NAT
Normalmente, los glóbulos blancos se tornan azules cuando se agrega el nitroazul de tetrazolio, lo cual significa que las células están produciendo el químico necesario para destruir bacterias.
Si la muestra no cambia de color cuando se adiciona el nitroazul de tetrazolio, los glóbulos blancos carecen del químico necesario para destruir bacterias. Esto puede deberse a la enfermedad granulomatosa crónica.
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