Study nature closely and you begin to notice the same patterns showing up everywhere. The veins in a leaf resemble those in the human hand. Tree branches echo the structure of our lungs. Rivers divide like blood vessels flowing through the body. Neural pathways in the brain look strikingly similar to galaxies in the cosmos. Different scales, same underlying design. It’s almost like creation runs on a shared language of order and connection. Nothing truly stands alone. Every system sustains anoth

SpO2（酸素濃度）何％から危険？現場での判断基準

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【新人医療職必見】「SpO2が測れない…！」臨床で一番焦るあの瞬間の正しい対処法