A patient with carbon dioxide retention is likely to have

A. False CO2 retention causes respiratory acidosis.

B. False In respiratory acidosis there is increased secretion of H ions in urine.

C. False Carbon dioxide dilates peripheral blood vessels.

D. True The vasodilator effect of high PCO2 on cerebral vessels may lead to cerebral oedema and headaches.

E. True The kidney manufactures bicarbonate to compensate the respiratory acidosis