Gas exchange — Flashcards

What cause of hypoxemia is not greatly helped by supplemental O2?_____

Increased Pco2 (hypercapnia) causes vaso-_____ in the pulmonary circulation

Which zone of the lung has the highest Pao2? _____

What ultimately leads to cellular injury in hypoxia?_____

The _____ form of hemoglobin is found in the respiratory tract

The _____ of the oxygen-Hb dissociation curve is the Po2 at which hemoglobin is 50% saturated

In normal health, O2 exhibits _____-limited gas exchange

The partial pressure of oxygen in the alveolar air (PAO2) and arterial blood (PaO2) is normally approximately _____ mmHg