Tag: Atelectasis

  • Blood gas analysis, pt 7: evaluating oxygenation and ventilation

    Blood gas analysis, pt 7: evaluating oxygenation and ventilation

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    In patients with respiratory compromise, it is important to look at the respiratory components of the blood gas to determine both oxygenation ability and adequacy of ventilation. To assess oxygenation, the partial pressure of arterial oxygen (PaO2) to fraction of inspired oxygen (FiO2) ratio, and alveolar-arterial gradient (A-a gradient) can be used. Conversely, the partial…

  • Standing surgery

    Standing surgery

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    On my latest EMS placement at an equine hospital, I’ve seen a number of surgeries – some done under general anaesthesia (GA) and others under standing sedation. After getting over the fact a horse can stand half asleep while having its face drilled into and not really seem to care, I started wondering about the…