![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiN8WEKI2ozEP9FMumXizUFEZs9v3iu9k2kNXckslRl5C7NG77tVr1wdlZk4mkLzwjgY5oPMArr10ch3b5yHqbfPUamk80Lu6ZEoi5YuOf4R8TwDioC9iQtDBlmsGB4HSggO5pLSQ/s400/SwanGanzCXR.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOwXwSxVZJMXfuNoB_RGCFrXIcRUsZF8cC26IrV5tudMqlMxfhn5KgxmhUeU7Cq6qaqALksJuau6GS81dydoAd_9UHQ55k3mXetGz-rKvrm6NjdpyxurocLJUtJSVOdBBm2ZAtMA/s400/SwanCompleteMonitorScreen.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqnEUPm9g8UUyLPHaGGe7oV1frwNFzUaUGoYsPZS4RiABAB7TxMvYUdxcK5_sedrI188sDAQn4eYh7ftpdpiEAfmhoXB5EaZigeqRMxcX9oboaMXdhKjg_lSOLMBUrQD_gXZTfqA/s400/SwanDataRecoveryAfterSuction.jpg)
After the earlier readings above, patient was suctioned and given neb. albuterol...the following readings were observed.
Question: Why is the Cardiac Output higher with lower PA saturations?!
This telemetry trace shows drop in systemic oxygen saturation at the same time as well. Therfore, the A-V difference of saturations (between pulse ox & PA sat from Swan-Ganz) actually narrowed during this time. Therefore, the CO increased.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtddb0_sMlJ3Tkqqz-yRvLmoWYKK-UOQT079O7pr-oaX1rr8SX5OuHeVJWunkbRMDBWjvXx27XBQOgVrn9ozlMt1OuWPWjl7mD5tUeLcvcBtPMdY0cm_CXg5hxHrEaQPCCJkwA8Q/s400/SwanDataCOincreaseWhenPAsatDecreaseWhyHow.jpg)
Patient also became tachycardiac following this which also contributes to increase in CO.
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