Which of the following is a necessary step for the medical assistant to take when sterilizing instruments using an autoclave?
A. Taking each instrument out of the unit by hand
B. Drying the instruments with a towel after sterilization
C. Preheating the instruments before placing them in the unit
D. Using distilled water in the unit
E. Placing the instruments in the closed position
Answer: D
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A male patient fell 20 feet from a cliff to a trail below. The primary assessment shows him to be confused, with an open airway and shallow breathing. His pulse is 72 beats per minute and his blood pressure is 78/50 mmHg. The skin is warm and flushed. The patient has no motor ability or sensation in his legs. Which one of the following is the most likely cause of this patient's presentation?
A) Internal bleeding B) Spinal injury C) Hemorrhagic shock D) Hypoglycemia
Which metals are added to gold to create an alloy for crowns, inlays, and onlays?
a. Nickel b. Platinum c. Tin d. Both b and c