You have a healthy canine patient under propofol anesthesia…

You have a healthy canine patient under propofol anesthesia for a quick laceration cleaning and suturing. It is a hunting dog that cut itself on a fence while chasing a rabbit instead of looking for pheasants. The dog is breathing room air and has a respiratory rate of 8 breaths/minute. You notice the pulse oximetry value is decreasing to 85% (normal is 95-100%). What is the MOST LIKELY reason for the decrease in the pulse oximetry value? 

A technician intern brings you a blood gas from an old dog h…

A technician intern brings you a blood gas from an old dog having knee surgery. An arterial blood gas analysis shows the following values. pH = 7.37, PaCO2 = 43 mmHg, PaO2 = 495 mmHg, Bicarbonate = 23 mmol/L, Base excess = -1 mmol/L. Which statement best describes this dog’s acid base status.