Transthoracic thyroidectomy

A decrease of one unit on the pH scale represents multiplying acidity ________ times

A) 5 B) 10 C) 20 D) 2

Nasopharyngeal airways should NOT be used:

A) in patients with a gag reflex. B) if suctioning of the airway is needed. C) if the tongue is the airway obstruction. D) in the presence of a basilar skull fracture.