What accounts for the change in PO2 between the atmosphere and alveoli?

I. Water vapor pressure in alveolar gas
II. PCO2 is higher in alveolus than in the atmospheric gas
III. Higher percentage of N2 in alveolar gas
IV. PB is lower in the alveoli than in the atmosphere
a. I, II and IV only c. I and II only
b. I and IVonly d. I, II, III, and IV


c. I and II only

Health Professions

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A TV reporter has been assigned to your ambulance for a ride-along. He is doing a segment on the local EMS system for EMS Week. In your down time, the reporter tells you that his wife was diagnosed with atherosclerosis. He is unsure what this condition is and asks you to explain it to him. Your response would be:

A) "Atherosclerosis affects the arteries of the heart and is caused by a heart attack." B) "The walls of the coronary arteries lose elasticity, which can lead to a heart attack." C) "The coronary arteries become damaged and narrowed by fat deposits." D) "Atherosclerosis affects the veins in the body and is caused by untreated high blood pressure."

Health Professions

In a shared-risk MCP package, the provider receives:

a. an eligibility list. b. a service fee list. c. a coverage list. d. a capitation list.

Health Professions

Which of the following cardiac biomarker co-traffics with low-density lipoprotein?

A. MPO B. CRP C. Lp-PLA2 D. Leptin

Health Professions

Calculate the amount you will prepare for each dose. A physician orders cefazolin 250 mg IV q6h.  Reconstitute with 2 mg/mL.  How many milliliters should be given?

What will be an ideal response?

Health Professions