Gas exchange — Flashcards

The Cl--HCO3- exchange that occurs across the RBC membrane is accomplished by an anion exchange protein called _____

Is the A - a gradient normal, increased, or decreased, in response to high altitude? _____

Do erythrocytes (RBCs) contain organelles? _____

Erythrocytes are _____ in shape, with a large surface area-to-volume ratio for rapid gas exchange

The gradient between PAo2 - Pao2 is known as the _____ and is normally 10 - 15 mmHg

Shifts of the O2-Hb dissociation curve to the _____ occurs when there is increased affinity of hemoglobin for O2

In the _____, H2CO3 in the red blood cell is reconverted to CO2 and H2O and expired

When patients have diseased lung tissue (e.g. fibrosis/emphysema) O2 transfer becomes _____-limited

The lung diffusing capacity, DL, _____ during exercise due to increased surface area (A)

At _____ altitude the partial pressure gradient of O2 is lower and thus equilibration takes longer