Answer:
C
Explanation:
John Locke was the philosopher who maintained that knowledge comes from experience via the senses, and therefore, science should rely on obersvations and experiments.
Blood I think
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The EMT should remembered that there is a possibility of bleeding of the nasal airway even if the nasopharyngeal airway is inserted correctly.
Nasopharyngeal airways are used to ensure that the airway of an unconscious patient do not become obstructed by their tongue due to the relaxation of their jaw muscles.
