Which microscope settings would be used to view epithelial cells, such as skin scrapings?

For which of the following patients is placement of an oropharyngeal airway indicated?

a. A responsive but confused patient with stridorous respirations b. A patient who has vomited and responds to painful stimuli by moaning c. An unresponsive patient who has neither a gag reflex nor a cough reflex d. A patient with snoring respirations who coughs as the oral airway is placed into his mouth

What part of a cell acts as a protective covering?

a. Nucleus b. Cell membrane c. Ribosome d. Cytoplasm