Surgical burs can be used in the low-speed handpiece

Your crew arrives at a home for a medical call. As you begin to exit the ambulance, a large dog charges you, barking and showing his teeth. You should:

A) kneel down and try to calm the animal. B) stay in the ambulance and call dispatch for additional resources. C) blow the horn until the homeowner comes out. D) have your partner distract the animal while you run inside.

What COHb level is associated with a throbbing headache, nausea, vomiting, and impaired judgment?

a. 1% to 10% b. 10% to 20% c. 20% to 30% d. 30% to 50%