Which of the following is NOT part of the lower respiratory tract?

A 65-year-old diagnosed with emphysema presents to the ER for difficulty breathing. Physical exam reveals both bluish skin and mucous membranes. What term will the nurse use to document these observations?

a. Cyanosis b. Hemoptysis c. Hematemesis d. Ischemia

Fleas, ticks, and mosquitoes are ________ that often carry organisms responsible for disease.

Fill in the blank(s) with the appropriate word(s).