Changes in blood passing through the systemic capillaries are all, EXCEPT:
Increase in hematocrit
pH decreases
Shift of oxygen dissociation curve to the left.
Increase in protein content
When blood passes through the capillaries CO2 diffuses from the tissue cells into the blood. This increases the blood PC02 and hence blood H2CO3 and Hydrogen ion conc. The 02-hemoglobin dissociation curve shifts to the right within the capillaries in response to increase in blood C02 and Hydrogen ions. A shift of the curve to the left indicates increased affinity of hemoglobin for oxygen. Ref: Textbook of Medical Physiology By Guyton, 10th Edition, Page 466; Ganong's Review of Medical Physiology, 23rd Edition, Page 667-9.