A patient who has smoked her entire adult life is diagnosed with severe emphysema. In measuring her lung ventilation, it was determined that the tidal volume of her lungs is 0.6 liter, her inspiratory reserve volume is 0.5 liter, her vital capacity is 1.5 liters, and her residual volume is 4.5 liters. What is her total lung capacity? Which of these volumes is larger than what you would find in a healthy person?