RALEIGH — I’m an early riser. I have been since early adulthood — long, long before any hungry children, or a certain German Shepherd, came along to command my early-morning attention. If you had ...

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Exchange-traded funds (ETFs) are investment vehicles that trade like a stock but give investors ownership of a broad range of stocks or other assets. ETFs offer investors an appealing alternative to ...

监护仪上的血氧饱和度（SpO2），即脉搏血氧仪测量的外周动脉血氧饱和度，是危重病人最常用的监测指标之一，它可以反映组织氧合状态，是持续无创评估氧合状态的标准做法，常被视为「第五生命体征」。 但是临床上是否经常遇到如下问题？ 因为在组织和 ...