pls help I don't understand these :( 14. Due to the patient's difficulty breathing nebulizers (bronchodilators) are prescribed. Below is the patients PFT results. For each patient value post-bronchodilator values shown below, indicate if the value increased (improved) or decreased (worsened). 15. Most patients with emphysema are able to maintain relatively normal arterial blood gases, regardless of their pulmonary condition, until the disease is very advanced. This is primarily due to: A. Primary polycythemia B. Decreased bicarbonate production from the kidneys C. Increased reparatory rate (hyperventilation) D. A slowly enlarging right side of the heart.