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Which block would be appropriate for extracting a lower canine and affect the least amount of the animal’s mouth?

Systemic lidocaine has an analgesic effect, but it is probably most effective for pain originating from which one of the following.

Many NSAID’s, but not including acetaminophen, have both central and peripheral (anti-inflammatory) effects.

Which of the following is an example of a prodrug? A drug whose metabolites produce a significant amount of the response.

The only method of pain control in a patient is by administering drugs.

Which one of these causes of hypoxemia is not responsive to supplemental oxygen?

What is the concentration, in mg/ml, of 0.5% bupivacaine?

Is the abnormal ECG complex in the ECG an escape beat or a ventricular premature contraction?  

Ocular pressure is likely to cause which one of these ECG changes?    

Ventricular premature contractions can occur in any patient but they are more likely to occur in a patient undergoing surgery to correct a GDV.