When a person breathes out, which of the following normally takes place?

A) O2 is exchanged for CO2.
B) The heart beats faster.
C) CO2 is expelled.
D) The pulse rate changes.

Answer: C

Health Professions

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What phrase describes the condition in which a series of alveoli in the left lower lobe receive ad-equate ventilation but lack adequate perfusion?

a. A right-to-left shunt b. Alveolar dead space c. A low ventilation-perfusion ratio d. Pulmonary hypotension

Health Professions

When taking an aural temperature on an adult, straighten the ear canal and pull the auricle:

A) ?straight down. B) ?straight out. C) ?down and back. D) ?up and back.

Health Professions