A patient who has taken an overdoes of aspirin is brought into the emergency room for treatment. She suffers from respiratory alkalosis, and the pH of her blood is 7.5. Determine the ratio of HCO3- to H2CO3 in the patient's blood at this pH. Next, consider a normal blood pH of 7.4. How does this ratio compared to the ratio of HCO3- to H2CO3 in normal blood? Can the H2CO3/ HCO3- system work effectively as a buffer in this patient under these condition.