The proper size oropharyngeal airway is determined by measuring
(A) from the tip of the nose to the center of the chin.
(B) form the corner of the mouth to the tip of the chin.
(C) from the corner of the mouth to the tip of the earlobe at the angle of the jaw.
(D) from the center of the mouth to the tip of the earlobe at the angle of the jaw.
Answer: (C) from the corner of the mouth to the tip of the earlobe at the angle of the jaw.
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