You receive a call that there is an infant in the lodge who seems to be having difficulty breathing. As you approach the scene with a new candidate patroller, you ask him the normal respiratory rate for infants. Which of the following is within the normal range?

Which one of the following patients should the EMT recognize as having an actual or potential occlusion of the upper airway?

A) 3-year-old male with a fever and swelling of the larynx B) 45-year-old female with spasm of the bronchioles C) 61-year-old male with a piece of fruit stuck in his trachea D) 78-year-old female with a large mucous plug in her bronchi

Which of the following are factors that influence the partial pressure of alveolar carbon dioxide (PACO2)? 1. Diffusion 2. Ventilation 3. CO2 production 4. Perfusion of the lungs

a. 1 and 2 c. 1, 3, and 4 b. 2 and 3 d. 1, 2, 3, and 4