Mr. Rogers is a 51-year old male. During his pre-operative examination, he tells the nurse, “I have an ache in my right foot”. He offers an explanation, suggesting, “I must have stepped on something or twisted my ankle. Maybe I got bitten by a bug when I was outside yesterday”. The nurse notes that the patient’s ankle is reddened, slightly swollen, and warm to the touch. However, his temperature is within normal limits. Mr. Roger’s ankle is x-rayed and there is no fracture noted. He has full range-of-motion of his right ankle. Mr. Rogers has a preexisting medical condition of gout. He is scheduled for outpatient surgery on his thyroid.