Physiology Respiratory system cefeb9e1 Physiological response to smoking, are all, except A Decreased HDL B Increased hematocrit C Increased hea rate and increased catecholamine release D Decreased carboxyhemoglobin High-Yield Explanation Carboxyhemoglobin increases in smokers Ref: guyton and hall textbook of medical physiology 12 edition page number:353,354,355