You have a mature Thoroughbred gelding under anesthesia for a colic surgery. It is under gas anesthesia with isoflurane in oxygen and on a ventilator. An arterial blood gas analysis shows the following values. pH = 7.23, PaCO2 = 37 mmHg, PaO2 = 450 mmHg, Bicarbonate = 10 mmol/L, Base excess = -10 mmol/L. Which statement best describes this horse’s acid base status.

 In certain situations, for instance a horse trapped in a trailer after an auto accident, a less than ideal method of euthanasia may be used to prevent prolonged suffering if more acceptable methods are not available. 

The pharmacokinetics of which one of the following drugs is likely to be most affected by a decrease in liver function?

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 drug’s affinity is best defined as which one of the following?

The 2 factors that determine cardiac output are: (select one answer)

Pharmacokinetics can best be described as which one of the following?

Low doses of NSAID’s are effective at preventing inflammation and are always less likely to produce undesirable side effects. 

Which of the following is considered an acceptable method of euthanizing a dog that can be easily restrained in a veterinary clinic?

You are working at a mixed animal practice in Missouri and you have a healthy canine patient under propofol anesthesia for a quick laceration cleaning and suturing. It is a hunting dog that cut herself on a fence while chasing a squirrel instead of looking for pheasants. The dog is breathing room air and has a respiratory rate of 6 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? There’s no hidden clue in the picture.